LBA-ECO TG-06 Vertical Profiles of Atmospheric Trace Gases over the Amazon Basin

This data set contains measurements of atmospheric carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), hydrogen (H2), nitrous oxide (N2O), and sulfur hexafluoride (SF6) collected from December 2000-November 2005 as vertical profiles above three sites in Brazil: Fortaleza, Santarem, and Manaus. At Santarem, ascending profiles were made above the Tapajos National Forest, near the km 67 Tower Site. At Manaus, ascending profiles were made above the K34 flux tower (aka, ZF2 km 34 tower) to the northwest of the city of Manaus. Descending profiles were flown nearby, but at locations upwind of population centers to avoid possible pollution. Fortaleza samples were collected off the coast, over the Atlantic Ocean to sample background air before it flows over the Amazon Basin. Air samples were collected as discrete samples aboard light aircraft and shipped to laboratories for analysis relative to internationally accepted calibration standards. There are three comma-delimited (.csv) data files with this data set.本数据集包含2000年12月至2005年11月期间，于巴西三座观测站点（福塔莱萨、圣塔伦与马瑙斯）上空采集的大气二氧化碳（carbon dioxide, CO₂）、甲烷（methane, CH₄）、一氧化碳（carbon monoxide, CO）、氢气（hydrogen, H₂）、一氧化二氮（nitrous oxide, N₂O）及六氟化硫（sulfur hexafluoride, SF₆）垂直廓线测量数据。 在圣塔伦站点，上升廓线采样于塔霍斯国家森林上空、靠近67号塔台站点的区域完成。在马瑙斯站点，上升廓线采样于马瑙斯市西北部的K34通量塔（又称ZF2 34公里塔台）上空开展；同期还在人口聚居区上风侧的邻近区域完成下降廓线飞行采样，以规避潜在的污染影响。福塔莱萨站点的采样则在近海大西洋上空进行，用于采集流经亚马孙盆地之前的本底大气样本。 大气样本通过轻型飞机以离散采样方式收集，随后被运送至实验室，参照国际公认的校准标准开展分析工作。 本数据集附带三份逗号分隔格式（.csv）的数据文件。