Item talk:Q318703
From geokb
{
"DOI": {
"doi": "10.5066/p1y5tzbm",
"identifiers": [],
"creators": [
{
"name": "Devendra Dahal",
"nameType": "Personal",
"affiliation": [
"Contractor to the United States Geological Survey"
],
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{
"name": "Stephen Boyte",
"nameType": "Personal",
"affiliation": [
"United States Geological Survey"
],
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"nameIdentifier": "https://orcid.org/0000-0002-5462-3225",
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{
"name": "Sujan Parajuli",
"nameType": "Personal",
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"Contractor to the United States Geological Survey"
],
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"nameIdentifier": "https://orcid.org/0000-0002-1652-3063",
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{
"name": "Kory Postma",
"nameType": "Personal",
"affiliation": [
"Contractor to the United States Geological Survey"
],
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},
{
"name": "Neal J Pastick",
"nameType": "Personal",
"affiliation": [
"United States Geological Survey"
],
"nameIdentifiers": [
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"schemeUri": "https://orcid.org",
"nameIdentifier": "https://orcid.org/0000-0002-8169-3018",
"nameIdentifierScheme": "ORCID"
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]
},
{
"name": "Logan J Megard",
"nameType": "Personal",
"affiliation": [
"Contractor to the United States Geological Survey"
],
"nameIdentifiers": [
{
"schemeUri": "https://orcid.org",
"nameIdentifier": "https://orcid.org/0000-0002-0150-4521",
"nameIdentifierScheme": "ORCID"
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]
},
{
"name": "Dinesh Shrestha",
"nameType": "Personal",
"affiliation": [
"Contractor to the United States Geological Survey"
],
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"schemeUri": "https://orcid.org",
"nameIdentifier": "https://orcid.org/0000-0003-2606-8524",
"nameIdentifierScheme": "ORCID"
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}
],
"titles": [
{
"title": "Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, 2024"
}
],
"publisher": "U.S. Geological Survey",
"container": {},
"publicationYear": 2024,
"subjects": [
{
"subject": "Remote Sensing"
},
{
"subject": "Land Use Change"
}
],
"contributors": [],
"dates": [
{
"date": "2024-05-03",
"dateType": "Updated"
},
{
"date": "2024-05-31",
"dateType": "Updated"
},
{
"date": "2024-05-10",
"dateType": "Updated"
},
{
"date": "2024-04-30",
"dateType": "Updated"
},
{
"date": "2024-05-17",
"dateType": "Updated"
},
{
"date": "2024-05-24",
"dateType": "Updated"
},
{
"date": "2024-06-06",
"dateType": "Updated"
},
{
"date": "2024-06-14",
"dateType": "Updated"
}
],
"language": null,
"types": {
"ris": "DATA",
"bibtex": "misc",
"citeproc": "dataset",
"schemaOrg": "Dataset",
"resourceType": "Dataset",
"resourceTypeGeneral": "Dataset"
},
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"relatedIdentifier": "https://doi.org/10.3390/rs14040807",
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"rightsList": [
{
"rights": "Creative Commons Zero v1.0 Universal",
"rightsUri": "https://creativecommons.org/publicdomain/zero/1.0/legalcode",
"schemeUri": "https://spdx.org/licenses/",
"rightsIdentifier": "cc0-1.0",
"rightsIdentifierScheme": "SPDX"
}
],
"descriptions": [
{
"description": "These datasets provide early estimates of 2024 fractional cover for exotic annual grass (EAG) species and one native perennial grass species on a weekly basis from April to late June. Typically, the EAG estimates are publicly released within 7-13 days of the latest satellite observation used for that version. Each weekly release contains five fractional cover maps along with their corresponding confidence maps for: 1) a group of 16 species of EAGs, 2) cheatgrass (Bromus tectorum); 3) Field Brome (Bromus arvensis); 4) medusahead (Taeniatherum caput-medusae); and 5) Sandberg bluegrass (Poa secunda). These datasets were generated leveraging field observations from Bureau of Land Management (BLM) Assessment, Inventory, and Monitoring (AIM) data plots; Harmonized Landsat and Sentinel-2 (HLS) based Normalized Difference Vegetation Index (NDVI); other relevant environmental, vegetation, remotely sensed, and geophysical drivers; and artificial intelligence/machine learning techniques. A total of 38,242 AIM plots from years 2016\u20132023 were used to train an ensemble of five-fold regression-tree models using a cross-validation approach (each observation was used as test data once and as training data four times) that developed all the fractional cover maps. The geographic coverage includes arid and semi-arid rangelands in the western U.S classified as shrubs or grassland/herbaceous by the 2021 National Land Cover Database at or below 2350-m elevation.\n\nNote:\nMaps of April 19th, 2024, were developed using satellite observation data no later than April 12.\nMaps of April 29th, 2024, were developed using satellite observation data no later than April 19.\nMaps of May 3rd, 2024, were developed using satellite observation data no later than April 26.\nMaps of May 10th, 2024, were developed using satellite observation data no later than May 3.\nMaps of May 17th, 2024, were developed using satellite observation data no later than May 10.\nMaps of May 24th, 2024, were developed using satellite observation data no later than May 18.\nMaps of May 31st, 2024, were developed using satellite observation data no later than May 24.\nMaps of June 7th, 2024, were developed using satellite observation data no later than June 1.\nMaps of June 14th, 2024, were developed using satellite observation data no later than June 10.\n\nReleases:\nFirst Release: April 19, 2024 (ver. 1.0)\nRevised: April 29, 2024 (ver. 2.0)\nRevised: May 03, 2024 (ver. 3.0)\nRevised: May 10, 2024 (ver. 4.0)\nRevised: May 17, 2024 (ver. 5.0)\nRevised: May 24, 2024 (ver. 6.0)\nRevised: May 31, 2024 (ver. 7.0)\nRevised: June 7, 2024 (ver. 8.0)\nRevised: June 14, 2024 (ver. 9.0)",
"descriptionType": "Abstract"
}
],
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"url": "https://www.sciencebase.gov/catalog/item/661fb823d34e7eb9eb7eac46",
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"created": "2024-04-19T19:36:13Z",
"registered": "2024-04-19T19:36:13Z",
"published": null,
"updated": "2024-06-14T13:25:06Z"
}
}
