中科院藏东南站：色季拉山东坡林线基本气象数据（2021）

1) 数据内容（包含的要素及意义）：数据包含气温（℃）、降水（mm）、相对湿度（%）和风速（m/s）和辐射（W/m2）五个指标的日值数据。
2) 数据来源及加工方法：气温、相对湿度、辐射和风速为日均值，降水为日累计值；数据采集地点为色季拉山东坡林线附近：29°39′25.2″N，94°42′25.62″E，4390m；下垫面为自然草地；采集器型号：Campbell Co CR1000，采集间隔时长：10分钟。数字化自动采集数据。气温和相对湿度仪器探头为HMP155A；风速传感器为05103；降水为TE525MM；辐射为Li200X。
3) 数据质量描述：气温、相对湿度和风速原始数据为10分钟一个的平均值，降水为10分钟的累积值；分别通过算术平均或求和得到日平均气温、相对湿度、降水量和风速。由于传感器限制，冬季降水量可能有一定的误差。
4) 数据应用成果及前景：此数据是已有数据《色季拉山气象数据（2007-2017）》和《中科院藏东南站色季拉山东坡林线基本气象数据（2018）》的更新，数据时间尺度跨度大，方便大气物理、生态、大气环境等方面的科学家或研究生使用。每年会不定期更新此数据。

1) Data Content (Included Elements and Their Meanings): The dataset contains daily values of five indicators: air temperature (℃), precipitation (mm), relative humidity (%), wind speed (m/s), and solar radiation (W/m²).
2) Data Source and Processing Methods: Air temperature, relative humidity, solar radiation, and wind speed are daily mean values, while precipitation is daily cumulative value. The data was collected near the treeline on the eastern slope of Sejila Mountain: 29°39′25.2″N, 94°42′25.62″E, at an altitude of 4390 m. The underlying surface is natural grassland. The data logger model is Campbell Co. CR1000, with a sampling interval of 10 minutes. The data was collected digitally and automatically. The sensors for air temperature and relative humidity are HMP155A probes; the wind speed sensor is model 05103; the precipitation sensor is TE525MM; and the solar radiation sensor is Li200X.
3) Data Quality Description: The raw data for air temperature, relative humidity, and wind speed are 10-minute mean values, while precipitation raw data is 10-minute cumulative values. Daily mean air temperature, relative humidity, wind speed, and total daily precipitation are calculated via arithmetic averaging or summation, respectively. Due to sensor limitations, precipitation data in winter may have certain errors.
4) Data Application Achievements and Prospects: This dataset is an update of the existing datasets "Sejila Mountain Meteorological Data (2007-2017)" and "Basic Meteorological Data near the Treeline on the Eastern Slope of Sejila Mountain, Southeast Tibet Station, Chinese Academy of Sciences (2018)". It covers a long time span, making it convenient for scientists and graduate students in fields such as atmospheric physics, ecology, and atmospheric environment to use. This dataset will be updated irregularly every year.

搜集汇总

背景与挑战

背景概述

该数据集提供了2021年中科院藏东南站在色季拉山东坡林线区域（海拔4390米）的基本气象日值数据，包括气温、降水、相对湿度、风速和辐射五个指标，通过自动采集设备获取。作为长期气象数据系列的更新，它时间尺度跨度大，适用于大气物理、生态等科学研究。