简介
该数据集报告了在帕拉西部（圣塔伦）67 公里原始森林塔站（图 1）测得的水蒸气浓度垂直剖面图。该站位于巴西中北部的塔帕若斯国家森林内。测量时间从 2002 年 1 月持续到 2006 年 1 月。在塔的 8 个高度（62.2、50、39.4、28.7、19.6、10.4 和 0.91 米）测量了水蒸气浓度。以 1000 sccm（标准立方厘米/分钟）的速度依次通过 8 个剖面入口（每个高度持续 2 分钟）抽取样品空气，然后同时从所有 8 个高度抽取混合空气样本，以获得总柱积分（每 20 分钟一次），并用红外气体分析仪（IRGA，LI-6262，Licor，内布拉斯加州林肯市）进行分析。数据以 1 小时为间隔取平均值。 H2O 的校准采用了两种独立的 IRGA 浓度测量校准方法：(a) 环境温度测量值与声波温度测量值的夜间关系；(b) 安装在塔上的冷镜露点湿度计。有关校准方法的更多详细信息，请参阅 Hutyra (2007) 的附录 A。共置测量包括使用塔装闭路 Licor 6262 气体分析仪和 Campbell CSAT3 声波风速计在两个高度（58 米和 47 米）测量 CO2 和 H2O 的涡流通量。此外，还测量了一套全面的气象参数（气温、气压、PAR、净辐射、降水等）。经作者许可，Hutyra, LR 2007. 亚马逊雨林的碳和水交换。博士论文，地球与行星科学系，哈佛大学，马萨诸塞州剑桥市，已作为配套文件包含在内。
摘要
Data File Description
column variable description
(column heading)
1 "JDstart(GMT)" decimal day (GMT, continuous from 1/1/00)
NOTE 1: Tapajos Forest Local time (LT) = GMT - 4 hours
NOTE 2: these times are time at the BEGINNING of the hour-long
data aggregation interval, i.e., data at 12:00 are from aggregating measurements between 12:00 and 13:00
2 1 H2O concentration (ppt) at level 1 @ 62.24m
3 2 H2O concentration (ppt) at level 2 @ 50.05m
4 3 H2O concentration (ppt) at level 3 @ 39.41m
5 4 H2O concentration (ppt) at level 4 @ 28.71m
6 5 H2O concentration (ppt) at level 5 @ 19.57m
7 6 H2O concentration (ppt) at level 6 @ 10.42m
8 7 H2O concentration (ppt) at level 7 @ 3.05m
9 8 H2O concentration (ppt) at level 8 @ 0.91m
10 9 H2O concentration (ppt), instantaneous average of levels 1-8
Missing value code is "NA"
Values are comma separated
Sample Data Records:
All of the profile data are reported in km67.h2o.profile.2002.2006.txt .
JDstart(GMT),1,2,3,4,5,6,7,8,9
733.708333333333,28.088,27.895,27.868,28.125,28.541,29.1185,29.4125,31.511,29.3095
733.75,27.757,27.9535,29.5455,29.726,29.696,29.642,30.1245,31.568,29.7096666666667
...
2210.5,30.1553333333333,30.2425,29.9885,30.447,30.8395,31.515,33.1545,33.1905,NA
2210.54166666667,29.438,29.5433333333333,29.774,30.115,30.6063333333333,31.113,32.3696666666667,33.208,NA
2210.58333333333,20.477,20.6143333333333,20.1033333333333,NA,NA,21.574,23.614,23.3925,28.0615
Site boundaries: (All latitude and longitude given in degrees and fractions)
Site (Region) Westernmost Longitude Easternmost Longitude Northernmost Latitude Southernmost Latitude Geodetic Datum
Para Western (Santarem) - km 67 Primary Forest Tower Site (Para Western (Santarem)) -54.959 -54.959 -2.857 -2.857 World Geodetic System, 1984 (WGS-84)
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"
df = pd.read_csv(url, sep="\t")
df
leafmap.nasa_data_login()
results, gdf = leafmap.nasa_data_search(
short_name="CD10_H2O_Profiles_Tapajos_861",
cloud_hosted=True,
bounding_box=(-54.95, -12.29, -47.04, -2.65),
temporal=("2002-01-01", "2006-01-18"),
count=-1, # use -1 to return all datasets
return_gdf=True,
)
gdf.explore()
leafmap.nasa_data_download(results[:5], out_dir="data")
引用
Hutyra, L.R., J. W. Munger, E. W. Gottlieb, B. C. Daube, P. B. Camargo and S. C. Wofsy. 2008. LBA-ECO CD-10 H2O Profiles at km 67 Tower Site, Tapajos National Forest. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.
