Google Earth Engine——美国PRISM插值程序模拟了天气和气候如何随海拔变化，并考虑了海岸效应、温度反转和可能导致雨影的地形障碍。

此星光明

发布于 2024-02-02 10:19:45

970

发布于 2024-02-02 10:19:45

文章被收录于专栏：GEE数据专栏，GEE学习专栏，GEE错误集等专栏GEE数据专栏，GEE学习专栏，GEE错误集等专栏

The PRISM daily and monthly datasets are gridded climate datasets for the conterminous United States, produced by the PRISM Climate Group at Oregon State University. Grids are developed using PRISM (Parameter-elevation Regressions on Independent Slopes Model). PRISM interpolation routines simulate how weather and climate vary with elevation, and account for coastal effects, temperature inversions, and terrain barriers that can cause rain shadows. Station data are assimilated from many networks across the country. For more information, see the Descriptions of PRISM Spatial Climate Datasets.

PRISM日数据集和月数据集是美国本土的网格化气候数据集，由俄勒冈州立大学的PRISM气候小组制作。网格是使用PRISM（独立坡度模型的参数-海拔回归）开发的。PRISM插值程序模拟了天气和气候如何随海拔变化，并考虑了海岸效应、温度反转和可能导致雨影的地形障碍。站点数据来自全国各地的许多网络。欲了解更多信息，请参见PRISM空间气候数据集的描述。

Dataset Availability

1981-01-01T00:00:00 - 2010-12-31T00:00:00

Dataset Provider

PRISM / OREGONSTATE

Collection Snippet

ee.ImageCollection("OREGONSTATE/PRISM/Norm81m")

Resolution

4638.3 meters

Bands Table

Name	Description	Min*	Max*	Units
ppt	30 Year average of monthly total precipitation (including rain and melted snow)	0.03	1046.09	mm
tmean	30 Year average of monthly mean temperature (calculated as (tmin+tmax)/2)	-16.15	37.88	°C
tmin	30 Year average of monthly minimum temperature	-21.9	29.79	°C
tmax	30 Year average of monthly maximum temperature	-10.78	46.63	°C
tdmean	30 Year average of monthly mean dew point temperature	-19.07	25.22	°C
vpdmin	30 Year average of monthly minimum vapor pressure deficit	0	33.11	hPa
vpdmax	30 Year average of monthly maximum vapor pressure deficit	0.37	94.11	hPa

* = Values are estimated

Name	Type	Description
PRISM_CREATION_DATE	List of Strings	List of original creation dates for each band, e.g: the first element is for the first band "ppt", the second element is for the second band "tmean"
PRISM_DATASET	List of Strings	List of dataset types per-band
PRISM_VERSION	List of Strings	List of code versions per-band
PRISM_FILENAME	List of Strings	List of original filenames per-band

引用：Daly, C., Halbleib, M., Smith, J.I., Gibson, W.P., Doggett, M.K., Taylor, G.H., Curtis, J., and Pasteris, P.A. 2008. Physiographically-sensitive mapping of temperature and precipitation across the conterminous United States. International Journal of Climatology, 28: 2031-2064

[Daly, C., J.I. Smith, and K.V. Olson. 2015. Mapping atmospheric moisture climatologies across the conterminous United States. PloS ONE 10(10):e0141140. doi:10.1371/journal.pone.0141140.

代码：

var dataset = ee.ImageCollection('OREGONSTATE/PRISM/Norm81m');
var precipitation = dataset.select('ppt');
var precipitationVis = {
  min: 0.0,
  max: 300.0,
  palette: ['red', 'yellow', 'green', 'cyan', 'purple'],
};
Map.setCenter(-100.55, 40.71, 0);
Map.addLayer(precipitation, precipitationVis, 'Precipitation');