Google Earth Engine——南极洲高程模型(REMA)2米和8米的空间分辨率数据集

举报
此星光明 发表于 2022/04/16 01:16:42 2022/04/16
【摘要】 镶嵌后REMA数据 The Reference Elevation Model of Antarctica (REMA) is a high resolution, time-stamped Digital Surface Model (DSM) of Antarctica at 2-meter and 8-meter spatial...

镶嵌后REMA数据

The Reference Elevation Model of Antarctica (REMA) is a high resolution, time-stamped Digital Surface Model (DSM) of Antarctica at 2-meter and 8-meter spatial resolutions.

Mosaicked DEM files are compiled from multiple strips that have been co-registered, blended, and feathered to reduce edge-matching artifacts.

南极洲参考高程模型(REMA)是一个高分辨率、有时间戳的南极洲数字表面模型(DSM),具有2米和8米的空间分辨率。

镶嵌的DEM文件是由多个条带汇编而成的,这些条带经过共同登记、混合和羽化,以减少边缘匹配的人工痕迹。

Dataset Availability

2009-01-01T00:00:00 - 2018-01-01T00:00:00

Dataset Provider

University of Minnesota Polar Geospatial Center

Collection Snippet

ee.Image("UMN/PGC/REMA/V1_1/8m")

 

Resolution

8 meters

Bands Table

Name Description Units
elevation Elevation meters

 数据说明:

美国国家科学基金会(PGC的主要资金来源)的政策要求研究人员在所有出版物、网页和媒体采访中承认NSF的支持。

通过在地球引擎中使用PGC数据,用户同意引用PGC及其由NSF提供的赞助。由PGC提供的任何第三方数据的原始来源也必须适当注明。

数据引用:

Howat, I. M., Porter, C., Smith, B. E., Noh, M.-J., and Morin, P.: The Reference Elevation Model of Antarctica, The Cryosphere, 13, 665-674, 2019.

TC - The Reference Elevation Model of Antarctica

代码:


  
  1. var mosaic = ee.Image('UMN/PGC/REMA/V1_1/8m');
  2. Map.setCenter(85, -75, 3);
  3. var elevationVis = {
  4. bands: ['elevation'],
  5. min: -50.0,
  6. max: 1000.0,
  7. palette: ['0d13d8', '60e1ff', 'ffffff'],
  8. };
  9. Map.addLayer(mosaic, elevationVis, 'REMA_DEM_mosaic_8m');

 

2m分辨率数据:

Strip DEM files correspond to the overlapping area of the input stereoscopic imagery pair strips as they are collected by DigitalGlobe’s constellation of polar-orbiting satellites. Strip DEM dimensions will vary according to the satellite sensor that acquired the images and the off-nadir angle of collection. Most strips are between 13 km and 17 km in width, and 110 km and 120 km in length.

条状DEM文件与输入的立体图像对条的重叠区域相对应,因为它们是由数字地球公司的极地轨道卫星群收集的。条状DEM的尺寸将根据获取图像的卫星传感器和收集的离地角度而变化。大多数条带的宽度在13公里到17公里之间,长度在110公里到120公里之间。

Collection Snippet

ee.ImageCollection("UMN/PGC/REMA/V1/2m")

Resolution

2 meters

波段信息:

Name Description Units
elevation Elevation meters
matchtag Bitmask raster indicating DEM pixels processing
matchtag Bitmask
  • Bit 0: Pixel processing
    • 0: Pixels have been interpolated
    • 1: Pixels are derived from a stereo match

 代码:


  
  1. var collection = ee.ImageCollection('UMN/PGC/REMA/V1/2m');
  2. Map.setCenter(85, -75, 3);
  3. var elevationVis = {
  4. bands: ['elevation'],
  5. min: -50.0,
  6. max: 1000.0,
  7. palette: ['0d13d8', '60e1ff', 'ffffff'],
  8. };
  9. Map.addLayer(collection, elevationVis, 'REMA_DEM_strips_2m');

 

 

8m分辨率数据:

Collection Snippet

ee.ImageCollection("UMN/PGC/REMA/V1/8m")

Resolution

8 meters

波段信息

Name Description Units
elevation Elevation meters
matchtag Bitmask raster indicating DEM pixels processing
matchtag Bitmask
  • Bit 0: Pixel processing
    • 0: Pixels have been interpolated
    • 1: Pixels are derived from a stereo match

 代码:


  
  1. var collection = ee.ImageCollection('UMN/PGC/REMA/V1/8m');
  2. Map.setCenter(85, -75, 3);
  3. var elevationVis = {
  4. bands: ['elevation'],
  5. min: -50.0,
  6. max: 1000.0,
  7. palette: ['0d13d8', '60e1ff', 'ffffff'],
  8. };
  9. Map.addLayer(collection, elevationVis, 'REMA_DEM_strips_8m');

 

 

文章来源: blog.csdn.net,作者:此星光明2021年博客之星云计算Top3,版权归原作者所有,如需转载,请联系作者。

原文链接:blog.csdn.net/qq_31988139/article/details/122057579

【版权声明】本文为华为云社区用户转载文章,如果您发现本社区中有涉嫌抄袭的内容,欢迎发送邮件进行举报,并提供相关证据,一经查实,本社区将立刻删除涉嫌侵权内容,举报邮箱: cloudbbs@huaweicloud.com
  • 点赞
  • 收藏
  • 关注作者

评论(0

0/1000
抱歉,系统识别当前为高风险访问,暂不支持该操作

全部回复

上滑加载中

设置昵称

在此一键设置昵称,即可参与社区互动!

*长度不超过10个汉字或20个英文字符,设置后3个月内不可修改。

*长度不超过10个汉字或20个英文字符,设置后3个月内不可修改。