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MERIT DEM:移除了多项错误的改进地形 DEM
MERIT DEM 是一种高精度全球 DEM,分辨率为 3 弧秒(赤道附近约为 90 米),通过消除现有 DEM(NASA SRTM3 DEM、JAXA AW3D DEM、Viewfinder Panoramas DEM)中的重大误差组成部分而生成。MERIT DEM 可分离绝对偏差、条纹噪声、斑点噪声和… dem elevation elevation-topography merit topography -
MERIT Hydro:全球水文数据集
MERIT Hydro 是一张新的全球流向图,分辨率为 3 弧秒(赤道附近约为 90 米),基于 MERIT DEM 海拔数据和水域数据集(G1WBM、GSWO 和 OpenStreetMap)的 1.0.3 版派生而来。MERIT Hydro 包含新 … dem elevation flow-direction hand hydrography hydrosheds -
MERIT Hydro:补充可视化图层
MERIT Hydro 的补充可视化图层 dem elevation flow-direction hand hydrography hydrosheds
Datasets tagged merit in Earth Engine
[null,null,[],[[["\u003cp\u003eMERIT DEM provides a high-accuracy global digital elevation model (DEM) at 3 arc-second resolution by removing errors from existing DEMs.\u003c/p\u003e\n"],["\u003cp\u003eMERIT Hydro offers a global flow direction map at 3 arc-second resolution derived from MERIT DEM and water body datasets.\u003c/p\u003e\n"],["\u003cp\u003eMERIT Hydro also includes supplementary visualization layers to aid in understanding and utilizing the hydrography data.\u003c/p\u003e\n"]]],["MERIT DEM is a high-accuracy global Digital Elevation Model (DEM) with a 3 arc-second resolution. It was created by removing errors from existing DEMs. MERIT Hydro, derived from MERIT DEM, is a global flow direction map, also at 3 arc-second resolution, that uses water body datasets. Supplementary visualization layers for MERIT Hydro are also available. The main actions include the creation of these datasets and the enhancement of resolution and correction of errors.\n"],null,["# Datasets tagged merit in Earth Engine\n\n-\n\n |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### MERIT DEM: Multi-Error-Removed Improved-Terrain DEM](/earth-engine/datasets/catalog/MERIT_DEM_v1_0_3) |\n | MERIT DEM a high accuracy global DEM at 3 arc second resolution (\\~90 m at the equator) produced by eliminating major error components from existing DEMs (NASA SRTM3 DEM, JAXA AW3D DEM, Viewfinder Panoramas DEM). MERIT DEM separates absolute bias, stripe noise, speckle noise and ... |\n | [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [merit](/earth-engine/datasets/tags/merit) [topography](/earth-engine/datasets/tags/topography) |\n\n-\n\n |-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### MERIT Hydro: Global Hydrography Datasets](/earth-engine/datasets/catalog/MERIT_Hydro_v1_0_1) |\n | MERIT Hydro is a new global flow direction map at 3 arc-second resolution (\\~90 m at the equator) derived from the version 1.0.3 of the MERIT DEM elevation data and water body datasets (G1WBM, GSWO and OpenStreetMap). MERIT Hydro contains the output of a new ... |\n | [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [flow-direction](/earth-engine/datasets/tags/flow-direction) [hand](/earth-engine/datasets/tags/hand) [hydrography](/earth-engine/datasets/tags/hydrography) [hydrosheds](/earth-engine/datasets/tags/hydrosheds) |\n\n-\n\n |-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### MERIT Hydro: Supplementary Visualization Layers](/earth-engine/datasets/catalog/MERIT_Hydro_reduced_v1_0_1) |\n | Supplementary visualization layers for MERIT Hydro |\n | [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [flow-direction](/earth-engine/datasets/tags/flow-direction) [hand](/earth-engine/datasets/tags/hand) [hydrography](/earth-engine/datasets/tags/hydrography) [hydrosheds](/earth-engine/datasets/tags/hydrosheds) |"]]