Aerosol Research Branch (ARB) 48 inch Lidar Data
气溶胶研究处 (ARB) 48 英寸激光雷达数据
简介
ARB_48_IN_LIDAR 数据集包含从位于 NASA 兰利研究中心的 48 英寸激光雷达系统收集的数据。每个粒度包含一年的数据。每个粒度的数据天数不同。每个测量值由四个参数组成:平流层随高度的综合后向散射、高度层、每个高度层的散射比和每个高度层的气溶胶后向散射系数。自 1974 年 5 月以来,气溶胶研究处(ARB)的激光雷达项目一直在弗吉尼亚州汉普顿的兰利研究中心进行地面激光雷达测量。这些激光雷达测量提供了对流层上部和平流层气溶胶的高分辨率垂直剖面图。激光雷达系统经过多年发展,为中纬度平流层气溶胶提供了宝贵的长期历史数据。该系统使用红宝石激光器,每个脉冲发射 1 焦耳,重复频率为 0.15 赫兹(Hz),波长为 0.6943 微米。该系统还使用安装在可移动平台上的 48 英寸麦氏望远镜。发射器激光束的发散度约为 1.0 mrad,接收器的最大视场为 4.0 mrad。激光雷达的信号带宽为 1 兆赫,相当于 150 米的垂直分辨率。为提高动态范围,使用了三个光电倍增管。这些光电倍增管在激光发射后的特定时间以电子方式开启。光电倍增管输出信号由基于 12 位计算机自动测量和控制(CAMAC)的数字转换器处理,并由个人计算机采集。数据存档在光盘上。
Resource Type | Dataset |
---|---|
Metadata Created Date | November 12, 2020 |
Metadata Updated Date | December 6, 2023 |
Publisher | NASA/LARC/SD/ASDC |
Maintainer | M., DR. MCCORMICK |
Identifier | C1000000706-LARC_ASDC |
Data First Published | 2011-08-25 |
Language | en-US |
Data Last Modified | 2018-06-11 |
Category | ARB, geospatial |
Public Access Level | public |
Bureau Code | 026:00 |
Metadata Context | https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld |
Metadata Catalog ID | https://data.nasa.gov/data.json |
Schema Version | https://project-open-data.cio.gov/v1.1/schema |
Catalog Describedby | https://project-open-data.cio.gov/v1.1/schema/catalog.json |
Citation | 1999-03-23. Archived by National Aeronautics and Space Administration, U.S. Government, NASA/LARC/SD/ASDC. https://doi.org/10.5067/ASDC_DAAC/ARB/0001. |
Harvest Object Id | cd3e5e75-ff53-42f6-b549-bd75aba6e838 |
Harvest Source Id | 58f92550-7a01-4f00-b1b2-8dc953bd598f |
Harvest Source Title | NASA Data.json |
Homepage URL | https://doi.org/10.5067/ASDC_DAAC/ARB/0001 |
Metadata Type | geospatial |
Old Spatial | <?xml version="1.0" encoding="UTF-8"?><gml:Polygon xmlns:gml="http://www.opengis.net/gml/3.2" srsName="EPSG:4326"><gml:outerBoundaryIs><gml:LinearRing><gml:posList>37.1 -76.378 37.1 -76.3 37.106 -76.3 37.106 -76.378 37.1 -76.378</gml:posList></gml:LinearRing></gml:outerBoundaryIs><gml:innerBoundaryIs></gml:innerBoundaryIs></gml:Polygon> |
Program Code | 026:001 |
Source Datajson Identifier | True |
Source Hash | 761bf9c79d9ac71a62d8ae1acab1e27b13af4187df7909b26c35b29f19a4efe5 |
Source Schema Version | 1.1 |
Spatial | |
Temporal | 1982-06-14T00:00:00Z/2001-12-04T23:59:59.999Z |
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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="ARB_48_IN_LIDAR",
cloud_hosted=True,
bounding_box=(-165.68, 34.59, -98.1, 71.28),
temporal=("1982-06-14", "2001-12-04"),
count=-1, # use -1 to return all datasets
return_gdf=True,
)
gdf.explore()
#leafmap.nasa_data_download(results[:5], out_dir="data")
引用
1999-03-23. Archived by National Aeronautics and Space Administration, U.S. Government, NASA/LARC/SD/ASDC. https://doi.org/10.5067/ASDC_DAAC/ARB/0001.
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