中科院藏东南站：色季拉山顶基本气象数据（2016-2019）

该数据为中国科学院藏东南高山环境综合观测研究站2016年在色季拉山西坡山顶架设自动气象站数据（AWS，Campbell公司），地理坐标为北纬29.5919，东经94.6102，海拔4640m，下垫面为高山草地。
数据包括气温（℃）、相对湿度（%）、风速（m/s）和气压(mb)日算术平均数据和降水的日累计值，原始数据2018年10月之前为30分钟一个平均值，此后为10分钟记录一个平均值。温湿度采用HMP155A温湿度探头测定，降雨量仪器型号为RG3-M，大气压力传感器探头为PTB210，风速传感器为05103，这些探头离地面2 m。数据质量方面：剔除了明显异常值，2019年上半年积雪导致电池损坏，数据有缺失，缺失的气温数据利用了附近站点4390m气温拟合回归矫正，已在数中标据黄，使用时请注意；降水量的监测从2019年8月开始。该数据站点为藏东南地区较高海拔的气象站，后续会不定期更新，可供研究生态、气候、水文、冰川等的科研工作者使用。

This dataset consists of automatic weather station (AWS, Campbell Scientific) data collected in 2016 at the mountaintop of the western slope of Sejila Mountain by the Comprehensive Observation and Research Station for Alpine Environment in Southeast Tibet, Chinese Academy of Sciences. Its geographic coordinates are 29.5919° N, 94.6102° E, with an elevation of 4640 m, and the underlying surface is alpine grassland.

The dataset includes daily arithmetic mean values of air temperature (℃), relative humidity (%), wind speed (m/s), and atmospheric pressure (mb), as well as daily cumulative precipitation. The original data was recorded as 30-minute averages prior to October 2018, and switched to 10-minute averages thereafter. Air temperature and relative humidity were measured using HMP155A probes, precipitation with an RG3-M sensor, atmospheric pressure with a PTB210 sensor, and wind speed with a 05103 sensor; all sensors were installed at a height of 2 m above the ground.

Regarding data quality: Obvious outliers have been removed. In the first half of 2019, snow accumulation caused battery damage, leading to missing data. The missing air temperature data were corrected via regression fitting using air temperature observations from a nearby station at 4390 m, and these corrected entries have been marked in the dataset; please note this when utilizing the data. Precipitation monitoring commenced in August 2019.

This station is a high-elevation meteorological station in Southeast Tibet, and the dataset will be updated irregularly subsequently. It is accessible to researchers studying ecology, climatology, hydrology, glaciology, and other relevant disciplines.

搜集汇总

背景与挑战

背景概述

该数据集是中国科学院藏东南站在色季拉山顶（海拔4640米）采集的2016年至2019年基本气象数据，包括气温、湿度、风速、气压和降水等日值观测，适用于高海拔地区生态与气候研究。数据经过质量处理，但部分时段存在缺失，其中气温缺失值已通过邻近站点矫正，降水数据从2019年8月开始记录。