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全球 3 类 PALSAR-2/PALSAR 森林/非森林地图
您可以在 JAXA/ALOS/PALSAR/YEARLY/FNF4 中找到此数据集的较新版本,其中包含 2017 年至 2020 年的 4 个类。全球森林/非森林地图 (FNF) 是通过对全球 25 米分辨率 PALSAR-2/PALSAR SAR 拼接图中的 SAR 图像(回波系数)进行分类而生成的,以便强回波像素和弱回波像素… alos alos2 classification eroc forest forest-biomass -
全球 4 类 PALSAR-2/PALSAR 森林/非森林地图
全球森林/非森林图 (FNF) 是通过对全球 25 米分辨率 PALSAR-2/PALSAR SAR 拼接图中的 SAR 图像(回波系数)进行分类而生成的,以便将强回波像素和弱回波像素分别分配为“森林”和“非森林”。在本指南中,“森林”是指具有以下特征的自然森林: alos alos2 classification eroc forest forest-biomass -
全球 PALSAR-2/PALSAR 年度拼接图,版本 1
您可以在 JAXA/ALOS/PALSAR/YEARLY/SAR_EPOCH 中找到包含 2015-2021 年数据的此数据集的较新版本。25 米分辨率的全球 PALSAR/PALSAR-2 拼接图是通过将 PALSAR/PALSAR-2 的 SAR 图像条拼接而成的无缝全球 SAR 图像。对于每个年份和地理位置,我们选择了条状数据… alos alos2 eroc jaxa palsar palsar2 -
全球 PALSAR-2/PALSAR 年度拼接图,版本 2
全球 25 米 PALSAR/PALSAR-2 拼接图是通过将 PALSAR/PALSAR-2 的 SAR 图像条拼接而成的无缝全球 SAR 图像。对于每个年份和地理位置,我们通过对相应时间段内可用的浏览拼接图进行目视检查,选择了显示最小 … alos alos2 eroc jaxa palsar palsar2
Datasets tagged palsar in Earth Engine
[null,null,[],[[["\u003cp\u003eThis collection provides global 25m resolution PALSAR-2/PALSAR mosaics, including forest/non-forest classifications and yearly SAR mosaics.\u003c/p\u003e\n"],["\u003cp\u003eForest/non-forest maps are available in both 3-class (Global 3-class PALSAR-2/PALSAR Forest/Non-Forest Map) and 4-class (Global 4-class PALSAR-2/PALSAR Forest/Non-Forest Map) versions, classifying areas as forest or non-forest based on backscatter intensity.\u003c/p\u003e\n"],["\u003cp\u003eTwo versions of yearly mosaics are available: version 1 (Global PALSAR-2/PALSAR Yearly Mosaic, version 1) and an updated version 2 (Global PALSAR-2/PALSAR Yearly Mosaic, version 2) with data for 2015-2021, created by mosaicking strips of SAR imagery selected for minimum cloud and snow cover.\u003c/p\u003e\n"],["\u003cp\u003e"Forest" in these datasets is defined as natural forest with tree crown cover greater than 10% and tree height exceeding 5 meters.\u003c/p\u003e\n"]]],[],null,["# Datasets tagged palsar in Earth Engine\n\n-\n\n |-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Global 3-class PALSAR-2/PALSAR Forest/Non-Forest Map](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR_YEARLY_FNF) |\n | A newer version of this dataset with 4 classes for 2017-2020 can be found in JAXA/ALOS/PALSAR/YEARLY/FNF4 The global forest/non-forest map (FNF) is generated by classifying the SAR image (backscattering coefficient) in the global 25m resolution PALSAR-2/PALSAR SAR mosaic so that strong and low backscatter pixels ... |\n | [alos](/earth-engine/datasets/tags/alos) [alos2](/earth-engine/datasets/tags/alos2) [classification](/earth-engine/datasets/tags/classification) [eroc](/earth-engine/datasets/tags/eroc) [forest](/earth-engine/datasets/tags/forest) [forest-biomass](/earth-engine/datasets/tags/forest-biomass) |\n\n-\n\n |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Global 4-class PALSAR-2/PALSAR Forest/Non-Forest Map](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR_YEARLY_FNF4) |\n | The global forest/non-forest map (FNF) is generated by classifying the SAR image (backscattering coefficient) in the global 25m resolution PALSAR-2/PALSAR SAR mosaic so that strong and low backscatter pixels are assigned as \"forest\" and \"non-forest\", respectively. Here, \"forest\" is defined as the natural forest with ... |\n | [alos](/earth-engine/datasets/tags/alos) [alos2](/earth-engine/datasets/tags/alos2) [classification](/earth-engine/datasets/tags/classification) [eroc](/earth-engine/datasets/tags/eroc) [forest](/earth-engine/datasets/tags/forest) [forest-biomass](/earth-engine/datasets/tags/forest-biomass) |\n\n-\n\n |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Global PALSAR-2/PALSAR Yearly Mosaic, version 1](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR_YEARLY_SAR) |\n | A newer version of this dataset with data for 2015-2021 can be found in JAXA/ALOS/PALSAR/YEARLY/SAR_EPOCH The global 25m PALSAR/PALSAR-2 mosaic is a seamless global SAR image created by mosaicking strips of SAR imagery from PALSAR/PALSAR-2. For each year and location, the strip data were selected ... |\n | [alos](/earth-engine/datasets/tags/alos) [alos2](/earth-engine/datasets/tags/alos2) [eroc](/earth-engine/datasets/tags/eroc) [jaxa](/earth-engine/datasets/tags/jaxa) [palsar](/earth-engine/datasets/tags/palsar) [palsar2](/earth-engine/datasets/tags/palsar2) |\n\n-\n\n |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Global PALSAR-2/PALSAR Yearly Mosaic, version 2](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR_YEARLY_SAR_EPOCH) |\n | The global 25m PALSAR/PALSAR-2 mosaic is a seamless global SAR image created by mosaicking strips of SAR imagery from PALSAR/PALSAR-2. For each year and location, the strip data were selected through visual inspection of the browse mosaics available over the period, with those showing minimum ... |\n | [alos](/earth-engine/datasets/tags/alos) [alos2](/earth-engine/datasets/tags/alos2) [eroc](/earth-engine/datasets/tags/eroc) [jaxa](/earth-engine/datasets/tags/jaxa) [palsar](/earth-engine/datasets/tags/palsar) [palsar2](/earth-engine/datasets/tags/palsar2) |"]]