Climate and Flux Data from Alaska Sites, 1998-2000, Version 1.0

This data set contains climate, flux, and bulk density data from Ivotuk and Council (Seward Peninsula), Alaska, collected from 1998 through 2000. Surface energy and trace gas exchange measurements were made at each of the four Ivotuk sites using the eddy covariance technique. Three flux and climate towers operated at Council, Seward Peninsula, during 1999 and 2000. Two towers were located at the tundra and forest sites. The third tower was a mobile tower and during 1999 covered four different surface types: lowshrub, shrub, woodland, and burned tundra. During 2000, the mobile tower covered tall shrub, tundra ISS2, burned tundra, heath and shallow thaw lake. The data have been divided by surface type or site and by data type (flux or climate). The data set also includes mean bulk density measurements for soil layers, collected in 1999. Measurements were taken as part of the Land-Atmosphere-Ice Interactions Arctic Transitions in the Land-Atmosphere System (LAII-ATLAS) program. The research project was funded by the Arctic System Sciences (ARCSS) Program, grant number OPP-9818066.

本数据集包含1998年至2000年间采集自阿拉斯加锡沃德半岛（Seward Peninsula）伊沃图克（Ivotuk）与康瑟尔（Council）地区的气候、通量及土壤容重数据。针对伊沃图克的4个观测站点，采用涡度协方差技术（eddy covariance technique）开展了地表能量与痕量气体交换量观测。1999年至2000年间，锡沃德半岛康瑟尔地区设有3座通量与气候观测塔：其中2座分别坐落于苔原与森林站点，第3座为移动观测塔——1999年期间其覆盖了4类不同地表类型：低灌丛、灌丛、林地与火烧苔原；2000年则覆盖了高灌丛、苔原ISS2、火烧苔原、欧石楠灌丛与浅融湖。该数据集已按地表类型、观测站点以及数据类型（通量或气候）进行分类整理。此外，数据集还包含1999年采集的土壤层平均容重观测数据。本次观测作为“陆-气-冰相互作用北极陆-气系统转型（Land-Atmosphere-Ice Interactions Arctic Transitions in the Land-Atmosphere System, LAII-ATLAS）”计划的一部分开展，相关研究项目由北极系统科学（Arctic System Sciences, ARCSS）计划资助，资助编号为OPP-9818066。