纳木错4700米~7243米大气垂直剖面黑炭通量和温湿压数据（2022）

2022年6月30日~7月2日，高海拔项目团队与第二次青藏高原科学考察队共同于纳木错科考站开展科考活动，获取了海拔4700米~7243米高空范围内的大气黑炭通量及温湿压数据。此次数据获取由高海拔项目团队研制的复合翼飞行机器人搭载黑炭通量检测仪和大气温湿压采集仪，由4700米起飞，逐渐盘旋至7243米，进行特定区域的大气数据采集和观测。本次数据为首次采用飞行机器人获取到的7000米高空大气数据。通过上述数据判断得出大气黒碳浓度自5740米以上，随海拔升高呈指数级升高，判断该区春夏交互季节，高海拔西风环流携带导致黒碳浓度高。5700米以下，受地面人类活动排放等影响，导致低海拔区黒碳浓度升高。随海拔升高，温度和大气压逐步降低。湿度先降低后升高。但区间不一致。判断西风-季风环流交互区可能在6000米至6700米区间左右。此次获取的的数据对大气黑炭浓度随季节变化以及对西风-季风环流交互区的判断分析有显著支撑作用。

From June 30 to July 2, 2022, the High Altitude Project Team and the Second Tibetan Plateau Scientific Expedition Team conducted scientific research at the Nam Co Scientific Research Station, collecting atmospheric black carbon flux, temperature, humidity and atmospheric pressure data within the altitude range of 4700 m to 7243 m. The data collection was carried out using a compound-wing flying robot developed by the High Altitude Project Team, which was equipped with a black carbon flux detector and an atmospheric temperature, humidity and pressure acquisition instrument. The robot took off at 4700 m and gradually climbed to 7243 m via circling to collect and observe atmospheric data over specific regions. This dataset represents the first collection of 7000-meter-altitude atmospheric data obtained using a flying robot.

Based on the collected data, it was determined that the atmospheric black carbon concentration increases exponentially with rising altitude above 5740 m, which is attributed to the transport of black carbon by the high-altitude westerly circulation during the spring-summer transition season. Below 5700 m, black carbon concentration is elevated due to emissions from ground human activities. With increasing altitude, temperature and atmospheric pressure gradually decrease, while humidity first decreases and then increases, with inconsistent corresponding ranges. It is inferred that the westerly-monsoon circulation interaction zone is likely between 6000 m and 6700 m. This acquired dataset provides significant support for the analysis of seasonal variations in atmospheric black carbon concentration and the identification of the westerly-monsoon circulation interaction zone.

搜集汇总

背景与挑战

背景概述

该数据集提供了2022年6月30日至7月2日纳木错地区海拔4700米至7243米的大气垂直剖面数据，首次采用飞行机器人获取，包括黑炭通量、温度、湿度和压力观测。数据揭示了黑炭浓度在5740米以上随海拔指数级升高（可能与西风环流相关），5700米以下受人类活动影响，温压随海拔降低而湿度先降后升，对分析大气黑炭季节变化和西风-季风环流交互区有重要价值。