NASA：ASTER L1A 重建未处理仪器数据 V003

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ASTER L1A 重建未处理仪器数据 V003

简介

先进星载热发射和反射辐射计（ASTER）1A 级（AST_L1A）包含重建的仪器数字编号（DN），这些数字编号来自所获取的望远镜遥测数据流：可见光和近红外（VNIR）、短波红外（SWIR）和热红外（TIR）。此外，还计算了几何校正系数和辐射校准系数，并将其附加到元数据中，但并未应用。空间分辨率为 15 米（VNIR）、30 米（SWIR）和 90 米（TIR），时间覆盖范围为 2000 年至今。自 2021 年 6 月 23 日起，辐射校准系数第 5 版（RCC V5）将应用于新观测到的 ASTER 数据和存档的 ASTER 数据产品。有关 RCC V5 的详细信息，请参阅以下期刊文章。

Common Core

Publisher	LP DAAC
Contact Name	undefined
Contact Email	mailto:lpdaac@usgs.gov
Bureau Code	026:00
Program Code	026:001
Public Access Level	public
Geographic Coverage	-180.0 -90.0 180.0 90.0
Temporal Applicability	2000-03-04T20:34:04Z/2022-01-17T00:00:00Z
Theme	Terra, geospatial
Language	en-US
Homepage	https://doi.org/10.5067/ASTER/AST_L1A.003
Issued	2002-03-14T12:45:45.250Z
Unique Identifier	C14758250-LPDAAC_ECS
Last Update	2015-09-30T10:40:23.489Z

代码

!pip install leafmap
!pip install pandas
!pip install folium
!pip install matplotlib
!pip install mapclassify
 
import pandas as pd
import leafmap
 
url = "https://github.com/opengeos/NASA-Earth-Data/raw/main/nasa_earth_data.tsv"
df = pd.read_csv(url, sep="\t")
df
 
leafmap.nasa_data_login()
 
 
results, gdf = leafmap.nasa_data_search(
    short_name="AST_L1A",
    cloud_hosted=True,
    bounding_box=(-180.0, -83.0, 180.0, 83.0),
    temporal=("2000-03-06", "2017-08-08"),
    count=-1,  # use -1 to return all datasets
    return_gdf=True,
)
 
 
gdf.explore()
 
#leafmap.nasa_data_download(results[:5], out_dir="data")

引用

Tsuchida, S., Yamamoto, H., Kouyama, T., Obata, K., Sakuma, F., Tachikawa, T., Kamei, A., Arai, K., Czapla-Myers, J.S., Biggar, S.F., and Thome, K.J., 2020, Radiometric Degradation Curves for the ASTER VNIR Processing Using Vicarious and Lunar Calibrations: Remote Sensing, v. 12, no. 3, at https://doi.org/10.3390/rs12030427.

NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team. 2001-04-30. AST_L1A.003. ASTER Level 1A Data Set - Reconstructed, unprocessed instrument data. Archived by National Aeronautics and Space Administration, U.S. Government, NASA EOSDIS Land Processes DAAC. https://doi.org/10.5067/ASTER/AST_L1A.003. https://doi.org/10.5067/ASTER/AST_L1A.003.