.. _gen_poggio_2021:

Poggio et. al 2021 mean SoilGrids 2.0 sand and clay contents
^^^^^^^^^^^^^^^^^^

Mean SoilGrids 2.0 sand and clay contents at 250m resolution. The reprojected 1-arcsec resolution version of this dataset served as input for estimating both static and transient water table depths across the contiguous United  States (CONUS) at a 1-arcsec resolution.


**Dataset Name**: poggio_2021

**Data Source**: poggio_2021

**Data Collection or Processing Notes:**

    This dataset is derived from averaging the 250m resolution sand and clay contents from SoilGrids 2.0 over six layers ranging  from 0 to 200 cm. It is then reprojected to the CONUS2 1-arcsec grid.

    

**Citations:**

Please refer to the following citations for more information on this dataset and cite them if you use the data

* https://doi.org/10.5194/soil-7-217-2021

* https://doi.org/10.5194/essd-16-4735-2024

**Extent and Resolution**:

* Available Date Range: 

* Grid: conus2.1arcsec

  - Spacial Resolution:  24.14076631 meters

  - XY Grid Spacial Extent:  209904 x 102561

  - LatLon Spacial Exent:  -124.90583333332924, 24.393333333310373,  -66.59916666661579, 52.8824999999999

  - Origin (meters): -124.90583333332924, 52.8824999999999

  - Projection: +proj=longlat +datum=NAD83 +no_defs

Variables
^^^^^^^^^^^^^^^^^^

This describes the available variables of the dataset.
Use the dataset, variables and temporal_resolution in python access functions as described in the Working with Gridded Data, and Working with Point Observations.

.. list-table:: Hydrogeology Variables
    :widths: 25 60 30 20 20 20
    :header-rows: 1

    * - variable
      - description
      - temporal_resolution
      - units
      - grid
      - 3D
    * - mean_sand
      - Mean sand content in soil
      - static
      - g/kg
      - conus2.1arcsec
      - no
    * - mean_clay
      - Mean clay content in soil
      - static
      - g/kg
      - conus2.1arcsec
      - no