Rice field geometries

This sf dataset contains polygon geometries of rice fields based on DWR i15 crop mapping from 2019.

ff_fields

Format

An object of class sf (inherits from tbl_df, tbl, data.frame) with 9628 rows and 7 columns.

Source

Developed by Bethany Hackenjos, Aidan Kelleher, Skyler Lewis, FlowWest, 2023, based on California Department of Water Resources & Land IQ i15 Crop Mapping 2019

Details

  • unique_id = the unique identifier of the rice field as defined in the original CNRA dataset

  • group_id = the unique identifier of the watershed group, obtained via spatial join, used to join to the watersheds dataset

  • county = common name of the county in which th erice field is located

  • elev_grp = an elevation interval

  • area_ac = area of the rice field polygon calculated in acres

  • volume_af = inundated volume of the rice field assuming 5 inches of water

Examples

head(ff_fields)
#> Simple feature collection with 6 features and 6 fields
#> Geometry type: POLYGON
#> Dimension:     XY
#> Bounding box:  xmin: 6498990 ymin: 2266347 xmax: 6536592 ymax: 2324743
#> Projected CRS: NAD83(2011) / California zone 2 (ftUS)
#> # A tibble: 6 × 7
#>   unique_id county elev_grp                  geometry group_id area_ac volume_af
#>   <chr>     <chr>  <chr>    <POLYGON [US_survey_foot> <chr>      <dbl>     <dbl>
#> 1 1103539   Glenn  90 to 1… ((6526707 2289953, 65266… 1802010…   23.4      9.76 
#> 2 1102849   Glenn  110 to … ((6517766 2307611, 65177… 1802010…   23.5      9.78 
#> 3 1103353   Glenn  120 to … ((6501679 2309168, 65016… 1802010…    1.06     0.440
#> 4 1103425   Glenn  120 to … ((6525986 2324730, 65259… 1802010…    1.34     0.558
#> 5 1103546   Glenn  70 to 80 ((6535820 2277869, 65358… 1802010…   48.9     20.4  
#> 6 1103560   Glenn  90 to 1… ((6499898 2267008, 64999… 1802010…   15.1      6.27 

plot(ff_fields$geometry)