LBA-ECO CD-05 土壤 VWC 和气象学、降雨排除、塔帕若斯国家森林

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此星光明 发表于 2025/05/25 22:42:04 2025/05/25
【摘要】 ​LBA-ECO CD-05 Soil VWC and Meteorology, Rainfall Exclusion, Tapajos National Forest简介本数据集报告了在巴西塔帕若斯国家森林 67 公里处的塞卡弗洛雷斯塔站进行的土壤湿度(以体积含水量 (VWC) 表示)、日降水量、气温、相对湿度和露点测量数据。这些测量数据是降雨排除实验 (REE) 的一部分,该实验旨在研究...

LBA-ECO CD-05 Soil VWC and Meteorology, Rainfall Exclusion, Tapajos National Forest

简介

本数据集报告了在巴西塔帕若斯国家森林 67 公里处的塞卡弗洛雷斯塔站进行的土壤湿度(以体积含水量 (VWC) 表示)、日降水量、气温、相对湿度和露点测量数据。这些测量数据是降雨排除实验 (REE) 的一部分,该实验旨在研究亚马逊湿润森林对严重干旱的响应。


从 1999 年到 2007 年,我们用连续高分辨率频域反射仪对两块 1 公顷地块的 VWC 进行了测量,深度达 11 米。其中一块地块在雨季被排除了约 75% 的穿透雨(排除),另一块地块则在正常条件下进行监测(对照)。


1999 年至 2006 年间,使用楔形雨量计测量了对照地块和附近空地的每日降水量。


2000年至2003年间,沿着该地点的对照地块和干燥地块的垂直森林剖面测量了空气温度、相对湿度和露点。


此数据集有三个以逗号分隔的数据文件 (.csv)。

摘要

File 1: VWC_REE_plots_1999_2007.csv.  Samples were collected from May 17, 1999 through April 20, 2007.

Column Heading Units/format Description
1 Treatment Plot identification: control or exclusion
2 Date YYYYMMDD Sampling date
3 Pit Pit identification: 1-10
4 Side Location of the sensor in the pit, either the right (R) or left (L) wall
5 Depth cm Depth in the soil at which the sensor is located reported in centimeters below the soil surface
6 VWC_original cm3 per cm3 Volumetric water content (VWC) reported in centimeters cubed (cm3) of water per centimeter cubed (cm3) of soil
7 VWC_reprocessed cm3 per cm3 VWC reprocessed reported in centimeters cubed (cm3) of water per centimeter cubed (cm3) of soil; where original values were determined to be unreliable, the reprocessed value is -9999
8 Reprocessed Flag to indicate that the original VWC value was reprocessed: 1 indicates reprocessing was necessary, 0 indicates original values are considered valid, and -9999 indicates there were no original values to consider
missing data are indicated by -9999



File 2: Rainfall_REE_plots_1999_2006.csv. Samples were collected from January 1, 1999, through January 31, 2006.

Column Heading Units/format Description
1 Date YYYYMMDD Sampling date (YYYYMMDD)
2 Ppt_Casa mm Rainfall over previous 24 hours measured at the Casa Onca site approximately 1 km from the experimental plots and reported in mm. Collections were not done on weekends, so Monday collections represent 3 days minus some evaporation
3 Ppt_REE_tower mm Rainfall over previous 24 hours measured at tower located in the control plot and reported in mm. Collections were not done on weekends, so Monday collections represent 3 days minus some evaporation
4 Exclusion Indicates whether the exclusion panels were in place, with 1 indicating yes and 0 indicating no
missing data are indicated by -9999


File 3: Temp_RH_REE_plots_2000_2003.csv. Samples were collected from 2000 through August 2003. Note that there are nearly 515,000 observations in this 30-MB file.

Column Heading Units/format Description
1 Treatment Plot identification: control or exclusion
2 Sensor_code Sensor identification
3 Location Sensors were located in both gap and closed forest locations
4 Height m Height of sensor reported in meters above the soil
5 Date YYYYMMDD Sampling date in local time (YYYYMMDD)
6 Time HH:MM Sampling time in local time ( local time is UTC-4)
7 T_air degrees C Air temperature reported in degrees Celsius
8 T_dewpoint degrees C Dewpoint temperature reported in degrees Celsius
9 RH percent Relative humidity reported in percent
missing data are indicated by -9999


Site boundaries: (All latitude and longitude given in decimal degrees)

Site (Region) Westernmost Longitude Easternmost Longitude Northernmost Latitude Southernmost Latitude Geodetic Datum
Para Western (Santarem) -  km 67 Seca-Floresta Site  (Para Western (Santarem)) -55.0000 -55.0000 -2.75000 -2.75000 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/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="CD05_Micromet_1169",
    cloud_hosted=True,
    bounding_box=(-54.97, -3.02, -54.96, -2.75),
    temporal=("2000-06-01", "2006-02-28"),
    count=-1,  # use -1 to return all datasets
    return_gdf=True,
)
gdf.explore()
 
#leafmap.nasa_data_download(results[:5], out_dir="data")

引用

Silver, W. L., et al., (2000). Effects of soil texture on belowground carbon and nutrient storage in a lowland Amazonian forest ecosystem, Ecosystems, 3, 193-209. doi:10.1007/s100210000019

Nepstad,D.C., P. Moutinho, M. B. Dias-Filho, E. Davidson, G. Cardinot, D. Markewitz, R. Figueiredo, N. Vianna, J. Chambers, D. Ray, J. B. Guerreiros, P. Lefebvre, L. Sternberg, M. Moreira, L. Barros, F. Y. Ishida, I. Tohlver, E. Belk, K. Kalif, K. Schwalbe. 2002. The effects of partial throughfall exclusion on canopy processes, aboveground production, and biogeochemistry of an Amazon forest. Journal of Geophysical Research 107:8085

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