![[Open Data]](https://assets.okfn.org/images/ok_buttons/od_80x15_blue.png)
These data are from soil salinity surveys conducted on California irrigated farmland between 1991 and 2017. The data consist of: (i.) geospatial field survey measurements of bulk soil electrical conductivity (ECa) and (ii.) laboratory determinations of soil salinity (ECe) and saturation percentage (SP) made on soil core sections extracted from the surveyed fields. The data consist of 277,624 ECa measurements and 8,575 ECe and SP determinations.
Soil bulk electrical conductivity (ECa) is relatively easy to measure in agricultural fields using electromagnetic induction (EMI) instrumentation. EMI instruments are readily mobilized and thus can be used to characterize in detail the spatial variability of ECa within fields (Corwin, 2005; 2008). ECa is a useful property because it often correlates with difficult-to-measure soil physical and chemical properties that affect crop production, including soil water content, clay percentage, bulk density, PH, and especially soil salinity. The standard quantitative measure of soil salinity is defined to be the electrical conductivity of the soil saturation paste extract, or ECe (U.S. Salinity Laboratory Staff, 1954). Saturation percentage (SP) is the dry-weight moisture percentage of the saturation paste.
The data can be used to test and explore model relationships between ECe, SP, and ECa (EMv and EMh), as well as their spatial variability. In particular, the data may be useful for comparing and testing modeling approaches that account for both deterministic and random components of soil spatial variability at single-field and multi-field scales, and to support high-resolution digital soil mapping studies across irrigated lands.
Data Files
Data are stored column-wise in two comma-delimited text files, ECe_USDA_ARS_USSL_v01.csv and ECa_USDA_ARS_USSL_v01.csv. Joining the files on the 'ID' column returns data for geolocations at which field measurements of ECa and laboratory determinations of ECe and SP both exist. For example:
ECe <- read.csv('ECe_USDA_ARS_USSL_v01.csv')
ECa <- read.csv('ECa_USDA_ARS_USSL_v01.csv')
dat <- plyr::join(ECe, ECa, 'ID')
plot3D::scatter3D(dat$ECe, dat$EMv_grd, dat$EMh_grd,
zlab='EMh (dS/m)', xlab='ECe (dS/m)',
ylab='EMv (dS/m)', clab = c("dS/m"), bty = "b2")
Salinity Survey Identifiers (DATASET)
The DATASET label in each file indicates the survey or field campaign from which the data are taken.
DATASET_1. Survey of the Broadview Water District in California performed by Corwin and co-workers in 1991 (Corwin et al, 1999). Data include: (i.) ECe and SP determinations on 1,889 soil samples (depths) from 315 soil cores (locations) and (ii.) 2613 ECa (EMv and EMh) field measurements. Data from this survey have been used previously for interpreting the spatial variability of soil salinity at the regional scale (Corwin, 2005).
DATASET_2. Survey of Coachella Valley, California farmland conducted between 2005 and 2008 and led by the Coachella Water District. Data consist of: (i.) ECe and SP determinations on 2,088 samples from 476 soil cores and (ii.) 133,037 ECa (EMv and EMh) measurements across the Coachella Valley. This dataset has been used in previous work for validating linear approaches to regional-scale ECa and ECe calibration (Corwin and Lesch, 2014).
DATASET_3. Survey led by Singh and colleagues across four fields in western San Joaquin Valley for the purpose of assessing environmental risk associated with saline drainage (Singh et al,. 2020). Data include: (i.) ECe and SP determinations on 1,080 samples from 273 soil cores and (ii.) 36,236 ECa (EMv and EMh) field measurements.
DATASET_4. Soil salinity survey led by USDA-ARS U.S. Salinity Laboratory between 2012 and 2013. The survey covered 21 fields in San Joaquin Valley, California. Data consist of: (i.) ECe and SP determinations on 1,634 samples from 180 soil cores and (ii.) 63,225 ECa (EMv and EMh) field measurements. These data were used previously for large scale soil salinity assessments and is described in detail by Scudiero et al. (2014).
DATASET_5. Data from surveys of 6 miscellaneous fields in California led by the USDA-ARS U.S. Salinity Laboratory. Data consist of: (i.) 244 determinations of ECe and SP on samples taken from 62 soil cores and (ii.) 62 corresponding ECa (EMv and EMh) field measurements.
DATASET_6. Soil salinity surveys led by the USDA-ARS U.S. Salinity Laboratory between 1999 and 2012. One field in southern San Joaquin Valley was assessed several times over many years. Data consist of: (i.) ECe and SP determinations on 1,640 samples from 239 soil cores and (ii.) 42,458 ECa (EMv and EMh) field measurements. These data have been used in previous works focusing on long-term and short-term monitoring and mapping of the spatial and temporal variability of soil salinity (Corwin, 2008, Corwin, 2012, Scudiero et al., 2017).
Majority funding provided by USDA-ARS Office of National Programs. Additional funding provided by Office of Naval Research (No. 3200001344), Coachella Valley Resource Conservation District (No. 09FG340003), and California Department of Water Resources (No. 4600011273).
References
Corwin, D.L. (2005). Geospatial Measurement of Apparent Soil Electrical Conductivity for Characterizing Soil Spatial Variability. doi: 10.1201/9781420032086 (Chapter 18)
Corwin, D.L. (2008). Past, present, and future trends of soil electrical conductivity measurement using geophysical methods. Handbook of Agricultural Geophysics, CRC Press.
Corwin, D.L. (2012). Field-scale monitoring of the long-term impact and sustainability of drainage water reuse on the west side of California's San Joaquin Valley. Journal of Environmental Monitoring 14(6), 1576-1596. doi: 10.1039/c2em10796a.
Corwin, D.L., Carrillo, M.L.K., Vaughan, P.J., Rhoades, J.D., Cone, D.G. (1999). Evaluation of a GIS-linked model of salt loading to groundwater. Journal of Environmental Quality 28(2), 471-480. doi: 10.2134/jeq1999.00472425002800020012x.
Corwin, D.L., Lesch, S. (2014). A simplified regional-scale electromagnetic induction: Salinity calibration model using ANOCOVA modeling techniques. Geoderma. s 230-231. 288-295. 10.1016/j.geoderma.2014.03.019.
Scudiero, E., Skaggs, T., Corwin, D.L. (2014). Regional Scale Soil Salinity Evaluation Using Landsat 7, Western San Joaquin Valley, California, USA. Geoderma Regional. 2-3. 82-90. 10.1016/j.geodrs.2014.10.004.
Scudiero, E., Skaggs, T. H., Corwin, D. L. (2017). Simplifying field-scale assessment of spatiotemporal changes of soil salinity. Sci. Total Environ., 587–588:273–281. doi:10.1016/j.scitotenv.2017.02.136.
Singh, A., Quinn, N.W.T., Benes, S.E., Cassel, F. (2020). Policy-Driven Sustainable Saline Drainage Disposal and Forage Production in the Western San Joaquin Valley of California. Sustainability 12(16), 6362.
U.S. Salinity Laboratory Staff. 1954. Diagnosis and improvement of saline and alkali soils. USDA Agric. Handbook. 60. U.S. Gov. Print. Office, Washington, DC.
- Field measured soil electrical conductivities (ECa)csv
Data columns:
EMv_grd: Bulk soil...
MD5:Explore Data17.19 MB - Laboratory determined soil salinity (ECe) and saturation percentage (SP)csv
Columns:
ECe: Electrical...MD5:Explore Data719.19 KB
| Field | Value |
|---|---|
| Tags | |
| Modified | 2023-02-21 |
| Release Date | 2022-08-05 |
| Identifier | f3d28139-9faa-421d-b784-eac41cf60bf8 |
| Spatial / Geographical Coverage Area | MULTIPOLYGON (((-120.248484 33.999329, -120.247393 34.001911, -120.238657 34.007592, -120.230001 34.010136, -120.221287 34.010367, -120.208478 34.005655, -120.19578 34.004284, -120.167306 34.008219, -120.151663 34.018126, -120.147647 34.024831, -120.140362 34.025974, -120.135853 34.026087, -120.115058 34.019866, -120.090182 34.019806, -120.073609 34.024477, -120.062778 34.031161, -120.061953 34.033976, -120.057637 34.03734, -120.055107 34.037729, -120.043259 34.035806, -120.044004 34.02482, -120.047798 34.021227, -120.050382 34.013331, -120.048926 34.009898, -120.046575 34.000002, -120.041311 33.994507, -120.025653 33.985553, -120.011123 33.979894, -120.003815 33.979547, -119.984316 33.983948, -119.978876 33.983081, -119.979913 33.969623, -119.976857 33.956693, -119.971141 33.950401, -119.97026 33.944359, -119.973691 33.942481, -120.00096 33.941554, -120.017715 33.936366, -120.046881 33.919597, -120.048315 33.917625, -120.048611 33.915775, -120.049682 33.914563, -120.077793 33.908886, -120.098601 33.907853, -120.105489 33.90428, -120.109137 33.899129, -120.121817 33.895712, -120.168974 33.91909, -120.179049 33.927994, -120.18984 33.947703, -120.192339 33.950266, -120.198602 33.952211, -120.200085 33.956904, -120.209372 33.972376, -120.224461 33.989059, -120.248484 33.999329)), ((-119.789798 34.05726, -119.770729 34.055051, -119.766081 34.05537, -119.763688 34.057155, -119.755521 34.056716, -119.739472 34.049299, -119.726437 34.047908, -119.712576 34.043265, -119.704628 34.037681, -119.686507 34.019805, -119.637742 34.013178, -119.619343 34.016468, -119.612226 34.021256, -119.604287 34.031561, -119.608798 34.035245, -119.609239 34.03735, -119.59324 34.049625, -119.57341 34.05011, -119.5667 34.053452, -119.529603 34.041155, -119.52064 34.034262, -119.52177 34.032247, -119.532413 34.024949, -119.538847 34.023988, -119.542449 34.021082, -119.54828 34.009819, -119.547072 34.005469, -119.554472 33.99782, -119.560464 33.99553, -119.575636 33.996009, -119.5902 33.989712, -119.596877 33.988611, -119.619082 33.987228, -119.621117 33.98899, -119.64771 33.987786, -119.662825 33.985889, -119.69011 33.972225, -119.706952 33.969178, -119.712363 33.965422, -119.714696 33.961439, -119.721206 33.959583, -119.742966 33.963877, -119.750438 33.963759, -119.758141 33.959212, -119.795938 33.962929, -119.842748 33.97034, -119.873358 33.980375, -119.877057 33.985757, -119.883033 34.000802, -119.884896 34.008814, -119.882531 34.011674, -119.876916 34.023527, -119.876329 34.032087, -119.892821 34.045529, -119.916216 34.058351, -119.923337 34.069361, -119.919155 34.07728, -119.912857 34.077508, -119.89113 34.072856, -119.857304 34.071298, -119.825865 34.059794, -119.818742 34.052997, -119.807825 34.052127, -119.789798 34.05726)), ((-120.46258 34.042627, -120.440248 34.036918, -120.418768 34.052093, -120.415287 34.05496, -120.411314 34.052869, -120.403613 34.050442, -120.396188 34.050187, -120.390906 34.051994, -120.374211 34.062658, -120.368813 34.06778, -120.368584 34.071214, -120.370176 34.074907, -120.368278 34.076465, -120.362251 34.073056, -120.354982 34.059256, -120.36029 34.05582, -120.358608 34.050235, -120.346946 34.046576, -120.331161 34.049097, -120.319032 34.041979, -120.313175 34.036576, -120.302122 34.023574, -120.304543 34.021171, -120.317052 34.018837, -120.347706 34.020114, -120.35532 34.017914, -120.35793 34.015029, -120.375143 34.018775, -120.409368 34.032198, -120.415225 34.032245, -120.419021 34.028949, -120.427408 34.025425, -120.454134 34.028081, -120.459635 34.031537, -120.465329 34.038448, -120.46258 34.042627)), ((-119.543842 33.280329, -119.532941 33.284728, -119.528141 33.284929, -119.50504 33.272829, -119.48278 33.263973, -119.465717 33.259239, -119.458466 33.254661, -119.429559 33.228167, -119.444269 33.21919, -119.464725 33.215432, -119.476029 33.21552, -119.500684 33.220569, -119.511659 33.223027, -119.517514 33.226737, -119.545872 33.233406, -119.564971 33.24744, -119.565641 33.250029, -119.566014 33.252639, -119.570642 33.257729, -119.578942 33.278628, -119.562042 33.271129, -119.555242 33.273429, -119.547642 33.280328, -119.543842 33.280329)), ((-119.422972 34.004368, -119.427589 34.006445, -119.437734 34.01, -119.441116 34.012426, -119.441226 34.014075, -119.433912 34.015975, -119.421376 34.015012, -119.411317 34.008005, -119.396251 34.005918, -119.389983 34.006099, -119.366591 34.016785, -119.357462 34.015919, -119.376396 34.010551, -119.391551 34.002505, -119.414528 34.004994, -119.422972 34.004368)), ((-118.524531 32.895488, -118.535823 32.90628, -118.551134 32.945155, -118.560887 32.957891, -118.573522 32.969183, -118.586928 33.008281, -118.596037 33.015357, -118.606559 33.01469, -118.605534 33.030999, -118.594033 33.035951, -118.57516 33.033961, -118.569013 33.029151, -118.564445 33.024914, -118.564527 33.018637, -118.559171 33.006291, -118.540069 32.980933, -118.529228 32.970921, -118.496811 32.933847, -118.485288 32.923545, -118.479039 32.920363, -118.460623 32.90951, -118.446771 32.895424, -118.369984 32.839273, -118.353504 32.821962, -118.356541 32.817311, -118.36053 32.819921, -118.379968 32.824545, -118.387375 32.825327, -118.394565 32.823978, -118.401268 32.820338, -118.425634 32.800595, -118.42943 32.805429, -118.428372 32.806872, -118.44492 32.820593, -118.476074 32.841754, -118.487908 32.84459, -118.496298 32.851572, -118.506902 32.868503, -118.508095 32.871321, -118.507193 32.876264, -118.524641 32.893175, -118.524531 32.895488)), ((-118.500212 33.449592, -118.499669 33.447879, -118.48557 33.446213, -118.477646 33.448392, -118.445812 33.428907, -118.423576 33.427258, -118.382037 33.409883, -118.370323 33.409285, -118.368301 33.40711, -118.365094 33.388374, -118.32446 33.348782, -118.316083 33.342928, -118.310213 33.335795, -118.303174 33.320264, -118.305084 33.310323, -118.316787 33.301137, -118.325244 33.299075, -118.343249 33.305234, -118.360332 33.31533, -118.374768 33.320065, -118.402941 33.320901, -118.440047 33.318638, -118.456309 33.32182, -118.465368 33.326056, -118.481886 33.344123, -118.48877 33.356649, -118.482609 33.369914, -118.478465 33.38632, -118.484949 33.412131, -118.48875 33.419826, -118.503952 33.424234, -118.515914 33.422417, -118.516267 33.425075, -118.52323 33.430733, -118.53738 33.434608, -118.558715 33.433419, -118.563442 33.434381, -118.570927 33.439351, -118.575901 33.448261, -118.593969 33.467198, -118.601185 33.469853, -118.60403 33.47654, -118.603375 33.478098, -118.598783 33.477939, -118.585936 33.473819, -118.54453 33.474119, -118.530702 33.468071, -118.500212 33.449592)), ((-122.418698 37.852717, -122.434403 37.852434, -122.443302 37.855448, -122.446316 37.861046, -122.438565 37.868367, -122.430958 37.872242, -122.421439 37.869969, -122.421341 37.869946, -122.41847 37.861764, -122.41847 37.852721, -122.418698 37.852717)), ((-123.013916 37.700355, -123.013897 37.704478, -123.012194 37.706749, -123.004489 37.706262, -123.00019 37.702937, -122.997189 37.697909, -123.000677 37.690203, -123.005543 37.689392, -123.011464 37.691907, -123.014303 37.696205, -123.013916 37.700355)), ((-122.3785 37.826505, -122.377879 37.830648, -122.369941 37.832137, -122.363244 37.823951, -122.358779 37.814278, -122.362661 37.807577, -122.372422 37.811301, -122.37267 37.81651, -122.3785 37.826505)), ((-124.065521 41.464739, -124.066057 41.470258, -124.075917 41.501757, -124.081427 41.511228, -124.081987 41.547761, -124.092404 41.553615, -124.101123 41.569192, -124.101403 41.578524, -124.097385 41.585251, -124.100961 41.602499, -124.114413 41.616768, -124.116037 41.628849, -124.120225 41.640354, -124.135552 41.657307, -124.139354 41.671652, -124.138373 41.678881, -124.143479 41.709284, -124.147412 41.717955, -124.154246 41.728801, -124.164716 41.740126, -124.17739 41.745756, -124.185363 41.739351, -124.19104 41.736079, -124.194953 41.736778, -124.203843 41.747035, -124.23972 41.7708, -124.242288 41.772034, -124.248704 41.771459, -124.255994 41.783014, -124.245027 41.7923, -124.230678 41.818681, -124.219592 41.846432, -124.208439 41.888192, -124.203402 41.940964, -124.204948 41.983441, -124.211605 41.99846, -124.100921 41.996956, -124.100216 41.996842, -124.087827 41.996891, -124.086661 41.996869, -123.821472 41.995473, -123.624554 41.999837, -123.518075 42.000436, -123.501997 42.000527, -123.498896 42.000474, -123.49883 42.000525, -123.347562 41.999108, -123.230764 42.003845, -123.230762 42.003845, -123.154908 42.008036, -123.045254 42.003049, -123.001152 42.003, -122.634739 42.004858, -122.501135 42.00846, -122.378193 42.009518, -122.289533 42.007764, -122.289527 42.007764, -122.161328 42.007637, -122.160438 42.007637, -122.156666 42.007384, -122.155408 42.007429, -122.001119 42.004017, -121.708199 42.000815, -121.705045 42.000766, -121.689159 42.000584, -121.675348 42.000351, -121.580865 41.998668, -121.52025 41.997983, -121.44754 41.997169, -121.43961 41.99708, -121.434977 41.997022, -121.376101 41.997026, -121.360253 41.99668, -121.340517 41.99622, -121.335734 41.996518, -121.334385 41.996655, -121.154347 41.996352, -121.035195 41.993323, -120.879481 41.993781, -120.693941 41.993676, -120.692219 41.993677, -120.326005 41.993122, -120.286424 41.993058, -119.999168 41.99454, -119.999866 41.183974, -119.999358 40.873101, -119.999232 40.867454, -119.999231 40.865899, -119.995926 40.499901, -119.996155 40.321838, -119.996155 40.32125, -119.996182 40.263532, -119.996183 40.262461, -119.997124 40.126363, -119.997234 40.091591, -119.997175 40.077245, -119.997291 40.071803, -120.000607 39.780779, -120.000502 39.779956, -120.001319 39.72242, -120.001319 39.722416, -120.003116 39.445113, -120.003117 39.445045, -120.005318 39.316479, -120.00532 39.31635, -120.005413 39.313848, -120.005414 39.313345, -120.005743 39.228664, -120.005746 39.22521, -120.004504 39.165599, -120.003402 39.112687, -120.002461 39.067489, -120.001014 38.999574, -119.904315 38.933324, -119.587679 38.714734, -119.587066 38.714345, -119.585437 38.713212, -119.494183 38.649852, -119.494022 38.649734, -119.450612 38.619964, -119.450623 38.619965, -119.328498 38.534648, -119.156863 38.414743, -119.125982 38.39317, -118.746598 38.124926, -118.428581 37.895613, -118.039798 37.615273, -118.039849 37.615245, -117.832726 37.464929, -117.500909 37.220282, -117.166187 36.970862, -117.000895 36.847694, -116.488233 36.459097, -116.097216 36.158346, -116.093601 36.155805, -115.912858 36.015359, -115.892975 35.999967, -115.84608 35.963596, -115.689302 35.842003, -115.648029 35.809629, -115.647683 35.809358, -115.647202 35.808995, -115.406079 35.618613, -115.404537 35.617605, -115.393996 35.609344, -115.391535 35.607271, -115.388866 35.605171, -115.303743 35.538207, -115.271342 35.51266, -115.225273 35.475907, -115.160599 35.424313, -115.160068 35.424129, -115.146788 35.413662, -115.145813 35.413182, -114.92548 35.237054, -114.925381 35.237039, -114.80503 35.140284, -114.804249 35.139689, -114.633013 35.002085, -114.62919 34.991887, -114.629015 34.986148, -114.630877 34.907263, -114.636725 34.889107, -114.635176 34.875003, -114.633051 34.869971, -114.552682 34.766871, -114.465607 34.69226, -114.452547 34.653494, -114.339627 34.451435, -114.264317 34.401329, -114.199482 34.361373, -114.176909 34.349306, -114.138282 34.30323, -114.131489 34.260387, -114.133264 34.258462, -114.164476 34.251667, -114.225861 34.201774, -114.244191 34.179625, -114.312592 34.144453, -114.321618 34.138093, -114.366521 34.118575, -114.390565 34.110084, -114.401352 34.111652, -114.411681 34.110031, -114.420499 34.103466, -114.43338 34.088413, -114.435429 34.079727, -114.434949 34.037784, -114.438266 34.022609, -114.46361 33.993431, -114.499883 33.961789, -114.518434 33.917518, -114.525539 33.838614, -114.523365 33.80612, -114.50434 33.756381, -114.494197 33.707922, -114.496489 33.696901, -114.519113 33.688473, -114.523959 33.685879, -114.530348 33.679245, -114.540617 33.591412, -114.5403 33.580615, -114.535965 33.569154, -114.535664 33.568788, -114.558898 33.531819, -114.594534 33.495059, -114.622918 33.456561, -114.627125 33.433554, -114.665278 33.415358, -114.721233 33.396912, -114.700103 33.341045, -114.672088 33.258499, -114.67536 33.185489, -114.679359 33.159519, -114.687074 33.142196, -114.696829 33.131209, -114.706175 33.105335, -114.707819 33.091102, -114.675104 33.047532, -114.62387 33.02872, -114.606282 33.025703, -114.589778 33.026228, -114.584765 33.028231, -114.578287 33.035375, -114.571653 33.036624, -114.523578 33.030961, -114.516912 33.026871, -114.511343 33.023455, -114.468605 32.971649, -114.46289 32.905797, -114.465715 32.87942, -114.465715 32.879191, -114.496284 32.822326, -114.496827 32.822119, -114.615733 32.729427, -114.615585 32.728446, -114.65826 32.733799, -114.65884 32.73383, -114.677091 32.736218, -114.678632 32.736614, -114.719633 32.718763, -115.465164 32.6671, -115.875842 32.636424, -116.106159 32.618328, -116.390091 32.59602, -117.118865 32.534661, -117.124862 32.534156, -117.133363 32.575625, -117.132963 32.597054, -117.136664 32.618754, -117.139464 32.627054, -117.159865 32.660652, -117.168866 32.671952, -117.180366 32.681652, -117.192967 32.687751, -117.196767 32.688851, -117.213068 32.687751, -117.223868 32.683051, -117.236239 32.671353, -117.246069 32.669352, -117.255169 32.700051, -117.25757 32.72605, -117.25537 32.745449, -117.25257 32.752949, -117.25497 32.786948, -117.26107 32.803148, -117.280971 32.822247, -117.28217 32.839547, -117.28117 32.843047, -117.27387 32.851447, -117.26497 32.848947, -117.26067 32.852647, -117.25617 32.859447, -117.25167 32.874346, -117.25447 32.900146, -117.26047 32.931245, -117.262547 32.939542, -117.28077 33.012343, -117.29337 33.034642, -117.309771 33.07454, -117.315278 33.093504, -117.328359 33.121842, -117.359484 33.164231, -117.362572 33.168437, -117.39148 33.202762, -117.401926 33.213598, -117.445583 33.268517, -117.469794 33.296417, -117.50565 33.334063, -117.547693 33.365491, -117.571722 33.378988, -117.59588 33.386629, -117.607905 33.406317, -117.631682 33.430528, -117.645582 33.440728, -117.645592 33.440733, -117.684584 33.461927, -117.689284 33.460155, -117.691984 33.456627, -117.691384 33.454028, -117.715349 33.460556, -117.726486 33.483427, -117.761387 33.516326, -117.784888 33.541525, -117.801288 33.546324, -117.814188 33.552224, -117.840289 33.573523, -117.87679 33.592322, -117.89979 33.599622, -117.927091 33.605521, -117.940591 33.620021, -117.957114 33.629466, -118.000593 33.654319, -118.029694 33.676418, -118.064895 33.711018, -118.088896 33.729817, -118.101097 33.734117, -118.116703 33.743549, -118.132698 33.753217, -118.1569 33.760317, -118.1755 33.763617, -118.180831 33.763072, -118.187701 33.749218, -118.1837 33.736118, -118.181367 33.717367, -118.207476 33.716905, -118.258687 33.703741, -118.277208 33.707091, -118.297104 33.708319, -118.317205 33.712818, -118.354705 33.732317, -118.360505 33.736817, -118.385006 33.741417, -118.396606 33.735917, -118.411211 33.741985, -118.428407 33.774715, -118.423407 33.782015, -118.405007 33.800215, -118.394376 33.804289, -118.394307 33.804315, -118.391507 33.815415, -118.392107 33.840915, -118.412708 33.883913, -118.44241 33.940312, -118.460611 33.969111, -118.482729 33.995912, -118.484212 33.99771, -118.502813 34.015509, -118.519514 34.027509, -118.543115 34.038508, -118.569235 34.04164, -118.603572 34.039048, -118.609652 34.036424, -118.668358 34.038887, -118.67543 34.037479, -118.679366 34.033255, -118.706215 34.029383, -118.732391 34.032743, -118.744952 34.032103, -118.783433 34.021543, -118.787094 34.019545, -118.805114 34.001239, -118.821579 34.013959, -118.84038 34.027527, -118.854653 34.034215, -118.896159 34.039207, -118.928048 34.045847, -118.938081 34.043383, -118.944887 34.04534, -118.954722 34.048167, -118.977751 34.059822, -118.99698 34.065943, -119.004644 34.066231, -119.037494 34.083111, -119.069959 34.09047, -119.088536 34.09831, -119.098216 34.099334, -119.109784 34.094566, -119.130169 34.100102, -119.159554 34.119653, -119.18864 34.139005, -119.20314 34.144505, -119.211241 34.144905, -119.216441 34.146105, -119.227743 34.161728, -119.237142 34.175804, -119.257043 34.213304, -119.265927 34.234609, -119.270144 34.252903, -119.278644 34.266902, -119.290945 34.274902, -119.302131 34.272761, -119.313034 34.275689, -119.337475 34.290576, -119.349187 34.304383, -119.370356 34.319486, -119.37578 34.321118, -119.388249 34.317398, -119.390449 34.318198, -119.42777 34.353016, -119.431066 34.355297, -119.435888 34.355839, -119.461036 34.374064, -119.472678 34.375628, -119.478265 34.377197, -119.510655 34.386295, -119.536957 34.395495, -119.559459 34.413395, -119.616862 34.420995, -119.638864 34.415696, -119.648664 34.417396, -119.671866 34.416096, -119.688167 34.412497, -119.684666 34.408297, -119.691749 34.403154, -119.709067 34.395397, -119.729369 34.395897, -119.74547 34.402898, -119.785871 34.415997, -119.794771 34.417597, -119.835771 34.415796, -119.853771 34.407996, -119.873971 34.408795, -119.925227 34.433931, -119.956433 34.435288, -119.971951 34.444641, -120.008077 34.460447, -120.038828 34.463434, -120.050682 34.461651, -120.088591 34.460208, -120.097212 34.461809, -120.118411 34.469927, -120.141165 34.473405, -120.183505 34.470372, -120.225498 34.470587, -120.238002 34.468098, -120.25777 34.467451, -120.283001 34.468354, -120.295051 34.470623, -120.299169 34.469731, -120.301822 34.467077, -120.341369 34.458789, -120.441975 34.451512, -120.451425 34.447094, -120.471376 34.447846, -120.47661 34.475131, -120.480372 34.481059, -120.490523 34.490075, -120.511421 34.522953, -120.524776 34.531291, -120.581293 34.556959, -120.608355 34.556656, -120.612005 34.553564, -120.622575 34.554017, -120.637805 34.56622, -120.645739 34.581035, -120.640244 34.604406, -120.625127 34.634489, -120.60197 34.692095, -120.60045 34.70464, -120.601672 34.709721, -120.614852 34.730709, -120.62632 34.738072, -120.637415 34.755895, -120.62297 34.7933, -120.616296 34.816308, -120.609898 34.842751, -120.610266 34.85818, -120.616325 34.866739, -120.639283 34.880413, -120.642212 34.894145, -120.647328 34.901133, -120.662889 34.901183, -120.670835 34.904115, -120.648905 34.974393, -120.63999 35.002963, -120.63357 35.033085, -120.629931 35.061515, -120.629583 35.078362, -120.630957 35.101941, -120.635787 35.123805, -120.644311 35.139616, -120.651134 35.147768, -120.662475 35.153357, -120.667994 35.15203, -120.675074 35.153061, -120.686974 35.160708, -120.698906 35.171192, -120.704203 35.173206, -120.714185 35.175998, -120.734231 35.178472, -120.74887 35.177795, -120.754823 35.174701, -120.756862 35.169208, -120.756086 35.160459, -120.760492 35.15971, -120.778998 35.168897, -120.786076 35.177666, -120.805258 35.184973, -120.846674 35.204429, -120.856047 35.206487, -120.873046 35.225688, -120.89679 35.247877, -120.896876 35.25399, -120.889354 35.277819, -120.87957 35.294184, -120.8672 35.327154, -120.862684 35.346776, -120.862133 35.360763, -120.866099 35.393045, -120.869209 35.403276, -120.884757 35.430196, -120.896862 35.442243, -120.907937 35.449069, -120.946546 35.446715, -120.950742 35.44802, -120.955863 35.453743, -120.969436 35.460197, -120.976122 35.459028, -121.003359 35.46071, -121.025621 35.484598, -121.05308 35.50753, -121.059913 35.509671, -121.101595 35.548814, -121.126027 35.593058, -121.133556 35.600455, -121.143561 35.606046, -121.166712 35.635399, -121.188897 35.643138, -121.195291 35.640734, -121.251034 35.656641, -121.272322 35.666711, -121.284973 35.674109, -121.289794 35.689428, -121.296473 35.696824, -121.304583 35.701794, -121.314632 35.71331, -121.315786 35.75252, -121.324918 35.769347, -121.332449 35.783106, -121.346363 35.795183, -121.356737 35.804187, -121.388053 35.823483, -121.406823 35.844623, -121.413146 35.855316, -121.426955 35.860103, -121.439584 35.86695, -121.462264 35.885618, -121.461227 35.896906, -121.463452 35.904416, -121.472435 35.91989, -121.4862 35.970348, -121.503112 36.000299, -121.51159 36.006598, -121.531876 36.014368, -121.553716 36.019798, -121.569612 36.021539, -121.574602 36.025156, -121.590395 36.050363, -121.589183 36.053775, -121.592853 36.065062, -121.606845 36.072065, -121.618672 36.087767, -121.622009 36.099695, -121.629634 36.114452, -121.680145 36.165818, -121.717176 36.195146, -121.779851 36.227407, -121.797059 36.234211, -121.806979 36.232907, -121.813734 36.234235, -121.826425 36.24186, -121.835785 36.250748, -121.83935 36.260478, -121.851967 36.277831, -121.874797 36.289064, -121.888491 36.30281, -121.894714 36.317806, -121.892917 36.340428, -121.905446 36.358269, -121.902669 36.363901, -121.901813 36.381879, -121.903195 36.393603, -121.905657 36.398206, -121.914378 36.404344, -121.917463 36.414809, -121.91474 36.42589, -121.9255 36.453918, -121.937205 36.472488, -121.9416 36.485602, -121.939216 36.496896, -121.938763 36.506423, -121.943678 36.511802, -121.944666 36.521861, -121.928769 36.523147, -121.925937 36.525173, -121.932508 36.559935, -121.942533 36.566435, -121.949659 36.567602, -121.95146 36.564009, -121.957335 36.564482, -121.972594 36.57337, -121.978592 36.580488, -121.970427 36.582754, -121.941666 36.618059, -121.938551 36.633908, -121.93643 36.636746, -121.929666 36.636959, -121.923866 36.634559, -121.890164 36.609259, -121.889064 36.601759, -121.886764 36.601459, -121.871364 36.604559, -121.860604 36.611136, -121.842263 36.630059, -121.831995 36.644856, -121.825052 36.657207, -121.814462 36.682858, -121.807062 36.714157, -121.805643 36.750239, -121.788278 36.803994, -121.791544 36.815186, -121.809363 36.848654, -121.810552 36.850648, -121.827664 36.879353, -121.862266 36.931552, -121.880167 36.950151, -121.894667 36.961851, -121.906468 36.96895, -121.930069 36.97815, -121.93947 36.97805, -121.95167 36.97145, -121.972771 36.954151, -121.975871 36.954051, -121.983896 36.958727, -122.012373 36.96455, -122.023373 36.96215, -122.027174 36.95115, -122.050122 36.948523, -122.066421 36.948271, -122.079356 36.950783, -122.105976 36.955951, -122.140578 36.97495, -122.155078 36.98085, -122.186879 37.00345, -122.20618 37.013949, -122.252181 37.059448, -122.260481 37.072548, -122.284882 37.101747, -122.292974 37.107318, -122.306139 37.116383, -122.313907 37.118161, -122.322971 37.11546, -122.330463 37.115338, -122.337071 37.117382, -122.338856 37.120854, -122.337085 37.130795, -122.337833 37.135936, -122.344029 37.144099, -122.359791 37.155574, -122.36179 37.163593, -122.367085 37.172817, -122.37927 37.181128, -122.390599 37.182988, -122.397065 37.187249, -122.405073 37.195791, -122.407181 37.219465, -122.408982 37.225258, -122.415822 37.232839, -122.419113 37.24147, -122.418452 37.248521, -122.411686 37.265844, -122.401323 37.337009, -122.40085 37.359225, -122.409258 37.374805, -122.423286 37.392542, -122.443687 37.435941, -122.445987 37.461541, -122.452087 37.48054, -122.467888 37.49814, -122.472388 37.50054, -122.476443 37.498768, -122.482351 37.496187, -122.485888 37.494641, -122.486749 37.49439, -122.487139 37.494277, -122.493789 37.492341, -122.494429 37.49269, -122.499289 37.495341, -122.516689 37.52134, -122.519533 37.537302, -122.516589 37.544939, -122.514789 37.546139, -122.513688 37.552239, -122.518088 37.576138, -122.517187 37.590637, -122.501386 37.599637, -122.496786 37.612136, -122.494085 37.644035, -122.496784 37.686433, -122.502427 37.708133, -122.506483 37.723731, -122.509397 37.748841, -122.511983 37.77113, -122.514483 37.780829, -122.50531 37.788312, -122.492883 37.787929, -122.485783 37.790629, -122.478083 37.810828, -122.470336 37.808671, -122.463793 37.804653, -122.425942 37.810979, -122.407452 37.811441, -122.398139 37.80563, -122.385323 37.790724, -122.375854 37.734979, -122.370094 37.732331, -122.367697 37.734943, -122.365478 37.734621, -122.356784 37.729505, -122.361749 37.71501, -122.370411 37.717572, -122.391374 37.708331, -122.39319 37.707531, -122.387626 37.67906, -122.374291 37.662206, -122.3756 37.652389, -122.37789 37.650425, -122.387381 37.648462, -122.386072 37.637662, -122.365455 37.626208, -122.35531 37.615736, -122.358583 37.611155, -122.370364 37.614427, -122.373309 37.613773, -122.378545 37.605592, -122.360219 37.592501, -122.317676 37.590865, -122.315385 37.587265, -122.315713 37.583666, -122.305895 37.575484, -122.262698 37.572866, -122.251898 37.566321, -122.244372 37.55814, -122.242832 37.557136, -122.236323 37.552891, -122.225135 37.545594, -122.214264 37.538505, -122.196593 37.537196, -122.194957 37.522469, -122.168449 37.504143, -122.155686 37.501198, -122.149632 37.502671, -122.140142 37.507907, -122.130979 37.503652, -122.127706 37.500053, -122.116112 37.505386, -122.111344 37.50758, -122.111998 37.528851, -122.128688 37.560594, -122.133924 37.562885, -122.137524 37.567467, -122.144396 37.581866, -122.147014 37.588411, -122.145378 37.600846, -122.14636 37.607391, -122.152905 37.640771, -122.163049 37.667933, -122.170904 37.676114, -122.179085 37.680041, -122.197411 37.692804, -122.203971 37.697769, -122.213774 37.698695, -122.221628 37.705567, -122.246826 37.72193, -122.255989 37.735674, -122.257953 37.739601, -122.257134 37.745001, -122.252226 37.747619, -122.244938 37.750294, -122.242638 37.753744, -122.253753 37.761218, -122.264101 37.764667, -122.275408 37.76735, -122.286139 37.769458, -122.293996 37.770416, -122.304345 37.774632, -122.318909 37.77904, -122.329159 37.783173, -122.33079 37.78383, -122.330963 37.786035, -122.331748 37.796052, -122.33555 37.799538, -122.335675 37.799652, -122.333711 37.809797, -122.323567 37.823214, -122.317676 37.826814, -122.306222 37.827469, -122.303931 37.830087, -122.301313 37.847758, -122.310477 37.873938, -122.309986 37.892755, -122.313258 37.89701, -122.313496 37.897211, -122.32373 37.905845, -122.33453 37.908791, -122.35711 37.908791, -122.362346 37.904209, -122.367582 37.903882, -122.378709 37.905191, -122.385908 37.908136, -122.389181 37.9101, -122.39049 37.922535, -122.395071 37.927117, -122.401289 37.928426, -122.413725 37.937262, -122.417371 37.943513, -122.430087 37.963115, -122.42976 37.965405, -122.415361 37.963115, -122.411761 37.960497, -122.408383 37.957544, -122.399832 37.956009, -122.367582 37.978168, -122.361905 37.989991, -122.363001 37.994375, -122.366928 37.998458, -122.368891 38.007948, -122.367909 38.01253, -122.363655 38.014166, -122.359493 38.009941, -122.340093 38.003694, -122.331912 38.00533, -122.321112 38.012857, -122.315549 38.013511, -122.300823 38.010893, -122.283478 38.022674, -122.262861 38.0446, -122.262861 38.051473, -122.266669 38.06007, -122.273006 38.07438, -122.282824 38.082889, -122.301804 38.105142, -122.314567 38.115287, -122.366273 38.141467, -122.39638 38.149976, -122.403514 38.150624, -122.40358 38.15063, -122.409798 38.136231, -122.439577 38.116923, -122.450377 38.116269, -122.454958 38.118887, -122.484411 38.11496, -122.489974 38.112014, -122.490727 38.109755, -122.491283 38.108087, -122.489974 38.096961, -122.486702 38.090088, -122.483757 38.071762, -122.492265 38.056381, -122.499465 38.032165, -122.497828 38.019402, -122.494556 38.015148, -122.481466 38.007621, -122.462812 38.003367, -122.452995 37.996167, -122.448413 37.988313, -122.448413 37.984713, -122.456595 37.978823, -122.462485 37.981441, -122.471975 37.981768, -122.488665 37.966714, -122.490302 37.964751, -122.490302 37.959188, -122.487684 37.948716, -122.480484 37.945443, -122.479175 37.941516, -122.48572 37.937589, -122.499465 37.939225, -122.503064 37.936607, -122.503064 37.928753, -122.493574 37.921881, -122.486375 37.921881, -122.478193 37.918608, -122.471975 37.910427, -122.472303 37.902573, -122.458558 37.894064, -122.448413 37.89341, -122.43925 37.88392, -122.438268 37.880974, -122.45005 37.871157, -122.462158 37.868866, -122.474266 37.874429, -122.480811 37.873448, -122.483429 37.868866, -122.483102 37.863957, -122.476536 37.832812, -122.476473 37.832513, -122.479151 37.825428, -122.47986 37.825641, -122.483483 37.826728, -122.492474 37.82484, -122.505383 37.822128, -122.522836 37.824717, -122.523585 37.824828, -122.537285 37.830328, -122.548986 37.836227, -122.561487 37.851827, -122.584289 37.859227, -122.60129 37.875126, -122.627113 37.88608, -122.639977 37.897349, -122.656519 37.904519, -122.678474 37.906604, -122.682171 37.90645, -122.693569 37.901171, -122.70264 37.89382, -122.727297 37.904626, -122.732898 37.920225, -122.736898 37.925825, -122.754606 37.935527, -122.766138 37.938004, -122.783244 37.951334, -122.791739 37.969422, -122.797405 37.976657, -122.821383 37.996735, -122.856573 38.016717, -122.882114 38.025273, -122.939711 38.031908, -122.956811 38.02872, -122.972378 38.020247, -122.981776 38.009119, -122.982386 38.004274, -122.980147 38.000831, -122.976764 37.99568, -122.97439 37.992429, -123.024066 37.994878, -123.020562 37.999544, -123.016303 38.001691, -123.011533 38.003438, -122.99242 38.041758, -122.960889 38.112962, -122.952086 38.138562, -122.949074 38.15406, -122.949626 38.164041, -122.953629 38.17567, -122.965408 38.187113, -122.96637 38.198514, -122.968112 38.202428, -122.991953 38.233185, -122.993959 38.237602, -122.993235 38.239686, -122.987149 38.237538, -122.968569 38.242879, -122.967203 38.250691, -122.977082 38.267902, -122.986319 38.273164, -122.994603 38.283096, -122.997106 38.289458, -123.002911 38.295708, -123.004122 38.297012, -123.024333 38.310573, -123.038742 38.313576, -123.051061 38.310693, -123.053476 38.305722, -123.052021 38.302246, -123.053504 38.299385, -123.058239 38.298355, -123.063671 38.302178, -123.074684 38.322574, -123.068437 38.33521, -123.068265 38.359865, -123.085572 38.390525, -123.103706 38.415541, -123.122379 38.437314, -123.128825 38.450418, -123.145325 38.459422, -123.166428 38.474947, -123.202277 38.494314, -123.249797 38.511045, -123.287156 38.540223, -123.297151 38.543452, -123.331899 38.565542, -123.343338 38.590008, -123.349612 38.596805, -123.371876 38.607235, -123.379303 38.621953, -123.398166 38.647044, -123.40301 38.649449, -123.405663 38.656729, -123.43272 38.687131, -123.441774 38.699744, -123.461291 38.717001, -123.490021 38.732213, -123.514784 38.741966, -123.525152 38.753801, -123.533535 38.768408, -123.541837 38.776764, -123.571987 38.798189, -123.579856 38.802835, -123.58638 38.802857, -123.600221 38.814115, -123.601569 38.81899, -123.605317 38.822765, -123.638637 38.843865, -123.642676 38.844005, -123.647387 38.845472, -123.652212 38.854582, -123.654696 38.865638, -123.659846 38.872529, -123.688099 38.893594, -123.71054 38.91323, -123.725367 38.917438, -123.72763 38.9295, -123.726315 38.936367, -123.738886 38.95412, -123.732892 38.954994, -123.729053 38.956667, -123.721347 38.963879, -123.711149 38.977316, -123.6969 39.004401, -123.69074 39.021293, -123.690095 39.031157, -123.693969 39.057363, -123.713392 39.108422, -123.721505 39.125327, -123.735936 39.139644, -123.737913 39.143442, -123.742221 39.164885, -123.76101 39.191595, -123.765891 39.193657, -123.774998 39.212083, -123.777368 39.237214, -123.787893 39.264327, -123.798991 39.271355, -123.803848 39.278771, -123.801757 39.28353, -123.803081 39.291747, -123.811387 39.312825, -123.808772 39.324368, -123.817369 39.3388, -123.822085 39.343857, -123.825331 39.360814, -123.826306 39.36871, -123.822325 39.379987, -123.821887 39.406809, -123.81469 39.446538, -123.795639 39.492215, -123.78417 39.509419, -123.778521 39.521478, -123.766475 39.552803, -123.76721 39.559852, -123.787417 39.604552, -123.78354 39.609517, -123.782322 39.621486, -123.78636 39.659932, -123.792659 39.684122, -123.808208 39.710715, -123.824744 39.718128, -123.829545 39.723071, -123.831599 39.730629, -123.835092 39.738768, -123.838089 39.752409, -123.83715 39.776232, -123.839797 39.795637, -123.851714 39.832041, -123.853764 39.8341, -123.881458 39.845422, -123.907664 39.863028, -123.915142 39.875313, -123.915853 39.881114, -123.930047 39.909697, -123.954952 39.922373, -123.962655 39.937635, -123.980031 39.962458, -123.99586 39.973045, -124.023938 40.001284, -124.035904 40.013319, -124.056408 40.024305, -124.065069 40.024785, -124.068908 40.021307, -124.072509 40.022657, -124.079983 40.029773, -124.080709 40.06611, -124.087086 40.078442, -124.110549 40.103765, -124.139952 40.11635, -124.170767 40.124207, -124.187874 40.130542, -124.214895 40.160902, -124.231095 40.171581, -124.258405 40.184277, -124.296497 40.208816, -124.320912 40.226617, -124.327691 40.23737, -124.34307 40.243979, -124.352715 40.250453, -124.363414 40.260974, -124.363634 40.276212, -124.347853 40.314634, -124.353124 40.331425, -124.356595 40.335016, -124.362796 40.350046, -124.365357 40.374855, -124.373599 40.392923, -124.379082 40.398828, -124.391496 40.407047, -124.402623 40.422105, -124.409591 40.438076, -124.408601 40.443201, -124.396642 40.462119, -124.38494 40.48982, -124.383224 40.499852, -124.387023 40.504954, -124.382816 40.519, -124.379096 40.522865, -124.363545 40.548698, -124.329404 40.61643, -124.315141 40.639526, -124.312558 40.641333, -124.289119 40.67963, -124.248406 40.735166, -124.228244 40.76939, -124.201921 40.805111, -124.176715 40.843618, -124.158322 40.876069, -124.137066 40.925732, -124.118147 40.989263, -124.112165 41.028173, -124.125448 41.048504, -124.132946 41.052482, -124.138217 41.054342, -124.142867 41.054032, -124.147216 41.052884, -124.148939 41.051467, -124.151266 41.051101, -124.153622 41.05355, -124.154028 41.059923, -124.154513 41.087159, -124.160556 41.099011, -124.159065 41.121957, -124.165414 41.129822, -124.163988 41.138675, -124.158539 41.143021, -124.149674 41.140845, -124.1438 41.144686, -124.122677 41.189726, -124.106986 41.229678, -124.106389 41.240682, -124.092284 41.287695, -124.079015 41.347135, -124.072294 41.374844, -124.063076 41.439579, -124.065521 41.464739))) |
| Publisher | Ag Data Commons |
| Spatial / Geographical Coverage Location | California |
| Temporal Coverage | January 1, 1991 to December 31, 2019 |
| License | |
| Contact Name | Skaggs, Todd |
| Contact Email | |
| Public Access Level | Public |
| Program Code | 005:040 - Department of Agriculture - National Research |
| Bureau Code | 005:18 - Agricultural Research Service |