Texas Statewide Landcover, Ecological Systems, and Percentage Canopy Classifications (10-meter Resolution) (2021)

<p>Statewide landcover, ecosystem, and percentage canopy cover&nbsp;classifications for Texas were mapped at a spatial resolution of 10-meters. Classifications were run for 16 zones across the state corresponding to available cloud-free multitemporal Sentinel-2 satellite imagery for each zone. For each zone, RandomForest classifications were run using data stacks comprised of spectral bands from three dates (winter, early growing season, late growing season/leaf-off) of imagery, as well as multiple vegetation indices (NDVI, EVI2, MSAVI2).&nbsp;Over 50,000 training points&nbsp;were selected from ground trips and high-resolution aerial image surveys&nbsp;to run the entire pixel-based classification. The overlapping zones were merged using a feathering algorithm to produce a single statewide land-cover classification map. The landcover mapping results were further refined using multiple spatial masks (e.g., urban, water, crop) along with logical rulesets and ancillary data.&nbsp;To map ecological systems, the land-cover classification was then intersected with&nbsp;an enduring features dataset derived&nbsp;primarily from soil&nbsp;map-unit polygons (gSSURGO) and other geophysical variables. Additionally, we produced a statewide percentage canopy cover map at a 10-meter spatial resolution using multiple techniques. For the western 2/3 of the Texas,&nbsp;a nested machine learning approach was used (<a href="https://doi.org/10.1016/j.rse.2020.111748">Sunde et al., 2020</a>), and for the eastern 1/3 of the state, a combination of LiDAR derived training data and machine learning was used.</p> <p>This dataset includes four items:</p> <ol> <li><strong>&quot;TX_10m_landcover_2021.zip&quot; - Statewide landcover classification for Texas (10-meter spatial resolution)</strong></li> <li><strong>&quot;TX_10m_ecoclass_map_2021.zip&quot; - Statewide ecological systems classification for Texas (10-meter spatial resolution)</strong></li> <li><strong>&quot;TX_10m_canopy_cover_2021.zip&quot; - Statewide percentage canopy cover map for Texas (10-meter spatial resolution)</strong></li> <li><strong>&quot;TX_lu_ecoclass_key.xlsx&quot; - Table containing keys for the mapped landcover, canopy, and ecological systems classes</strong></li> </ol> <p>(To facilitate display of the datasets within ESRI software, .lyr files are included in the respective archive folders)</p> <p><em>This work was funded by the Texas A&amp;M Forest Service.</em></p>