@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8> a dcat:Dataset ;
    dct:description "The WAVeTrends dataset is a 0.05 degree (5.55 km) vegetation change product, spanning the West African Sudano-Sahel region. It provides pixel-wise information on concurrent woody and herbaceous vegetation trends over a 32-year period (1982-2013). Change in woody vegetation was derived using long-term rain use efficiency (RUE) sensitivity, i.e., the per-pixel comparison of the difference of mean RUE between the first and last decades of the 32-year time series. Herbaceous vegetation change was defined by short-term RUE sensitivity, i.e., comparing the slope of the RUE relationship (productivity vs. precipitation) between both decades using per-pixel Analysis of Covariance (ANCOVA). Categorical vegetation change was then determined for each pixel using the direction of the change and a significance level of p<0.05. The use of RUE (the amount of biomass produced per unit of precipitation) for vegetation trend analysis in savanna regions relies on the assumption that rainfall is a significant positive driver of net production in drylands. Testing of this long-term productivity-rainfall relationship revealed that the assumption was not always met, therefore, validity flags are included for each pixel location." ;
    dct:identifier "C1739085532-ORNL_DAAC" ;
    dct:issued "2020-05-07"^^xsd:date ;
    dct:language "{en-US}" ;
    dct:modified "2020-05-08"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-17.1400 9.9600, 15.3100 9.9600, 15.3100 17.4100, -17.1400 17.4100, -17.1400 9.9600))"^^gsp:wktLiteral ] ;
    dct:title "Woody and Herbaceous Vegetation Change across the Savannas of West Africa, 1982-2013" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "undefined" ;
            vcard:hasEmail <mailto:uso@daac.ornl.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/465e0d8f-d513-490d-a0ea-aeb57da486f1>,
        <https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/490387e3-b79a-41f8-9b37-cfdf33f70efe>,
        <https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/569cf333-b0fc-4342-84b2-49575eb996aa>,
        <https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/67e55f28-2711-4906-978b-efe11bb2f2fc>,
        <https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/af2f8fd8-89b8-453d-b03d-dccbd2fc2e40>,
        <https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/d2fd46b9-7e78-47d9-90e3-35ec2ecd0b23>,
        <https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/da14c8b5-6866-4840-8132-721b1673a618> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "atmosphere",
        "biosphere",
        "ckan",
        "earth-science",
        "ecological-dynamics",
        "ecosystems",
        "geo",
        "geoss",
        "habitat-conversion-fragmentation",
        "human-dimensions",
        "national",
        "north-america",
        "precipitation",
        "united-states",
        "vegetation" ;
    dcat:theme <%7BVegetation>,
        <geospatial%7D> .

<https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/465e0d8f-d513-490d-a0ea-aeb57da486f1> a dcat:Distribution ;
    dct:description "Concurrent woody and herbaceous vegetation changes between the 1982-1991 and 2004-2013 decades of the Sudano-Sahel region of Africa. (A) Map of vegetation change categories. (B) Chart showing the conceptual position and the relative abundance of each category in a 2-D space (Anchang et al. 2019)." ;
    dct:format "PNG" ;
    dct:issued "2020-11-12T04:22:47.875161"^^xsd:dateTime ;
    dct:modified "2025-11-22T13:53:44.279958"^^xsd:dateTime ;
    dct:title "Get a related visualization" ;
    dcat:accessURL <https://daac.ornl.gov/VEGETATION/guides/WAVeTrends_Fig1.png> ;
    dcat:mediaType "image/png" .

<https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/490387e3-b79a-41f8-9b37-cfdf33f70efe> a dcat:Distribution ;
    dct:description "Search results for publications that cite this dataset by its DOI." ;
    dct:format "HTML" ;
    dct:issued "2020-11-12T04:22:47.875140"^^xsd:dateTime ;
    dct:modified "2025-11-22T13:53:44.277599"^^xsd:dateTime ;
    dct:title "Google Scholar search results" ;
    dcat:accessURL <https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1738> ;
    dcat:mediaType "text/html" .

<https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/569cf333-b0fc-4342-84b2-49575eb996aa> a dcat:Distribution ;
    dct:description "West African Vegetation Trends (WAVeTrends): WAVeTrends.pdf" ;
    dct:format "PDF" ;
    dct:issued "2020-11-12T04:22:47.875155"^^xsd:dateTime ;
    dct:modified "2025-11-22T13:53:44.279222"^^xsd:dateTime ;
    dct:title "View documentation related to this dataset" ;
    dcat:accessURL <https://daac.ornl.gov/daacdata/global_vegetation/WAVeTrends/comp/WAVeTrends.pdf> ;
    dcat:mediaType "application/pdf" .

<https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/67e55f28-2711-4906-978b-efe11bb2f2fc> a dcat:Distribution ;
    dct:description "Data set Landing Page DOI URL" ;
    dct:format "HTML" ;
    dct:issued "2020-11-12T04:22:47.875153"^^xsd:dateTime ;
    dct:modified "2025-11-22T13:53:44.278842"^^xsd:dateTime ;
    dct:title "This dataset's landing page" ;
    dcat:accessURL <https://doi.org/10.3334/ORNLDAAC/1738> ;
    dcat:mediaType "text/html" .

<https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/af2f8fd8-89b8-453d-b03d-dccbd2fc2e40> a dcat:Distribution ;
    dct:description "ORNL DAAC Data Set Documentation" ;
    dct:format "HTML" ;
    dct:issued "2020-11-12T04:22:47.875150"^^xsd:dateTime ;
    dct:modified "2025-11-22T13:53:44.278440"^^xsd:dateTime ;
    dct:title "View documentation related to this dataset" ;
    dcat:accessURL <https://daac.ornl.gov/VEGETATION/guides/WAVeTrends.html> ;
    dcat:mediaType "text/html" .

<https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/d2fd46b9-7e78-47d9-90e3-35ec2ecd0b23> a dcat:Distribution ;
    dct:description "This link allows direct data access via Earthdata login" ;
    dct:format "HTML" ;
    dct:issued "2020-11-12T04:22:47.875147"^^xsd:dateTime ;
    dct:modified "2025-11-22T13:53:44.278024"^^xsd:dateTime ;
    dct:title "Download this dataset" ;
    dcat:accessURL <https://daac.ornl.gov/daacdata/global_vegetation/WAVeTrends/> ;
    dcat:mediaType "text/html" .

<https://data.amerigeoss.org/dataset/6f094e07-c8f7-4234-8a01-568560e83ee8/resource/da14c8b5-6866-4840-8132-721b1673a618> a dcat:Distribution ;
    dct:description "West African Vegetation Trends (WAVeTrends): WAVeTrends_classify.pdf" ;
    dct:format "PDF" ;
    dct:issued "2020-11-12T04:22:47.875158"^^xsd:dateTime ;
    dct:modified "2025-11-22T13:53:44.279592"^^xsd:dateTime ;
    dct:title "View documentation related to this dataset" ;
    dcat:accessURL <https://daac.ornl.gov/daacdata/global_vegetation/WAVeTrends/comp/WAVeTrends_classify.pdf> ;
    dcat:mediaType "application/pdf" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .