Data supporting Landsat time series assessment of invasive annual grasses following energy development

To determine if invasive annual grasses increased around energy developments after the construction phase, we calculated an invasives index using Landsat TM and ETM+ imagery for a 34-year time period (1985-2018) and assessed trends for 1,755 wind turbines (from the U.S. Wind Turbine Database) installed between 1988 and 2013 in the southern California desert. The index uses the maximum normalized difference vegetation index (NDVI) for early season greenness (January-June), and mean NDVI (July-October) for the later dry season. We estimated the relative cover of invasive annuals each year at turbine locations and control sites and tested for changes before and after each turbine was installed. These data were used to make final conclusions in the larger work described above. The GIS shapefile included in this USGS data release includes unique turbine IDs, as well as early season invasive (ESI) values for turbines and corresponding control sites summarized before and after the turbine installation date.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:5da0e9b3e4b036616296cc41
metadata_type geospatial
modified 20200925
old-spatial -118.6249, 33.7609, -116.3562, 35.4607
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 1b01707f0f51701ee851e093ac968110ff5a95f7
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-118.6249, 33.7609], [-118.6249, 35.4607], [ -116.3562, 35.4607], [ -116.3562, 33.7609], [-118.6249, 33.7609]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • california
  • california-south
  • ckan
  • desert-ecosystems
  • ecology
  • energy-development
  • energy-resources
  • geo
  • geoss
  • google-earth-engine
  • grassland-ecosystems
  • grasslands
  • invasive-species
  • landsat
  • national
  • nonindigenous-species
  • normalized-difference-vegetation-index
  • north-america
  • time-series
  • united-states
  • usgs-5da0e9b3e4b036616296cc41
  • vegetation
  • wind-energy
isopen False
license_id notspecified
license_title License not specified
maintainer Miguel Villarreal
maintainer_email mvillarreal@usgs.gov
metadata_created 2025-11-20T15:47:02.914302
metadata_modified 2025-11-20T15:47:02.914306
notes To determine if invasive annual grasses increased around energy developments after the construction phase, we calculated an invasives index using Landsat TM and ETM+ imagery for a 34-year time period (1985-2018) and assessed trends for 1,755 wind turbines (from the U.S. Wind Turbine Database) installed between 1988 and 2013 in the southern California desert. The index uses the maximum normalized difference vegetation index (NDVI) for early season greenness (January-June), and mean NDVI (July-October) for the later dry season. We estimated the relative cover of invasive annuals each year at turbine locations and control sites and tested for changes before and after each turbine was installed. These data were used to make final conclusions in the larger work described above. The GIS shapefile included in this USGS data release includes unique turbine IDs, as well as early season invasive (ESI) values for turbines and corresponding control sites summarized before and after the turbine installation date.
num_resources 2
num_tags 25
title Data supporting Landsat time series assessment of invasive annual grasses following energy development