Google Earth Engine——全球土壤含数量数据:6个标准深度(0、10、30、60、100和200厘米)以250米的分辨率预测的33kPa和1500kPa吸力的土壤含水量(体积百分比)。
作者:互联网
Soil water content (volumetric %) for 33kPa and 1500kPa suctions predicted at 6 standard depths (0, 10, 30, 60, 100 and 200 cm) at 250 m resolution
Training points are based on a global compilation of soil profiles:
Data import steps are available here. Spatial prediction steps are described in detail here. Note: these are actually measured and mapped soil content values; no Pedo-Transfer-Functions have been used (except to fill in the missing NCSS bulk densities). Available water capacity in mm (derived as a difference between field capacity and wilting point multiplied by layer thickness) per layer is available here. Antartica is not included.
To access and visualize maps outside of Earth Engine, use this page.
在6个标准深度(0、10、30、60、100和200厘米)以250米的分辨率预测的33kPa和1500kPa吸力的土壤含水量(体积百分比)。
训练点是基于全球土壤剖面的汇编。
美国农业部NCSS
阿福克斯坦
ISRIC WISE
EGRPR
SPADE
CanNPDB
贸发局
SWIG
水利部
氢氧化钠
数据导入步骤见此。空间预测的步骤在此详细说明。注意:这些都是实际测量和绘制的土壤含量值;没有使用Pedo-Transfer-Functions(除了填补缺少的NCSS的体积密度)。这里提供了每层的可用水容量,单位是毫米(以田间容量和枯萎点之间的差值乘以层厚得出)。南极洲不包括在内。
要访问和查看地球引擎以外的地图,请使用此页面。
Dataset Availability
1950-01-01T00:00:00 - 2018-01-01T00:00:00
Dataset Provider
Collection Snippet
ee.Image("OpenLandMap/SOL/SOL_WATERCONTENT-33KPA_USDA-4B1C_M/v01")
Resolution
250 meters
Bands Table
Name | Description | Min* | Max* | Units |
---|---|---|---|---|
b0 | Soil water content at 33kPa (field capacity) at 0 cm depth | 0 | 52.9740182135385 | % |
b10 | Soil water content at 33kPa (field capacity) at 10 cm depth | 0 | 52.9740182135385 | % |
b30 | Soil water content at 33kPa (field capacity) at 30 cm depth | 0 | 52.9740182135385 | % |
b60 | Soil water content at 33kPa (field capacity) at 60 cm depth | 0 | 52.9740182135385 | % |
b100 | Soil water content at 33kPa (field capacity) at 100 cm depth | 0 | 52.9740182135385 | % |
b200 | Soil water content at 33kPa (field capacity) at 200 cm depth | 0 | 52.9740182135385 | % |
* = Values are estimated
数据引用:
Tomislav Hengl, & Surya Gupta. (2019). Soil water content (volumetric %) for 33kPa and 1500kPa suctions predicted at 6 standard depths (0, 10, 30, 60, 100 and 200 cm) at 250 m resolution (Version v01) [Data set]. Zenodo. 10.5281/zenodo.2629589
代码:
var dataset = ee.Image("OpenLandMap/SOL/SOL_WATERCONTENT-33KPA_USDA-4B1C_M/v01");
var visualization = {
bands: ['b0'],
min: 0.0,
max: 52.9740182135385,
palette: [
"d29642","eec764","b4ee87","32eeeb","0c78ee","2601b7",
"083371",
]
};
Map.centerObject(dataset);
Map.addLayer(dataset, visualization, "Soil water content at 33kPa (field capacity)");
标签:content,capacity,cm,33kPa,water,60,field,250,土壤 来源: https://blog.csdn.net/qq_31988139/article/details/120602310