Abstract. The Arctic is rapidly changing. Outside the Arctic, large-sample catchment databases have transformed catchment science from focusing on local case studies to more systematic studies of watershed functioning. Here we present an integrated pan-ARctic CAtchments summary DatabasE (ARCADE) of >40,000 catchments that drain into the Arctic Ocean and range in size from 1 km² to 3.1 x 10⁶ km² (Speetjens et al., 2022). These watersheds, delineated at a 90-m resolution, are provided with 103 geospatial, environmental, climatic, and physiographic catchment properties. ARCADE is the first aggregated database of pan-Arctic river catchments that also includes numerous small watersheds at a high resolution. These small catchments are experiencing the greatest climatic warming while also storing large quantities of soil carbon in landscapes that are especially prone to degradation of permafrost (i.e., ice-wedge polygon terrain) and associated hydrological regime shifts. ARCADE is a key step toward monitoring the pan-Arctic across scales and is publicly available: https://dataverse.nl/dataset.xhtml?persistentId=doi:10.34894/U9HSPV.

中文翻译：

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泛北极流域数据库 (ARCADE)

摘要。北极正在迅速变化。在北极以外，大样本流域数据库已将流域科学从关注当地案例研究转变为对流域功能进行更系统的研究。在这里，我们展示了一个综合的泛北极集水区汇总数据库 (ARCADE)，其中包含超过 40,000 个汇入北冰洋的集水区，大小范围从 1 km ²到 3.1 x 10 ⁶ km ²（Speetjens 等人，2022 年）。这些分水岭以 90 米的分辨率描绘，具有 103 个地理空间、环境、气候和地貌流域属性。ARCADE 是第一个泛北极河流流域的聚合数据库，其中还包括许多高分辨率的小流域。这些小流域正在经历最严重的气候变暖，同时还在特别容易发生永久冻土退化（即冰楔多边形地形）和相关水文状况变化的景观中储存了大量土壤碳。ARCADE 是跨尺度监测泛北极的关键一步，可公开获得：https://dataverse.nl/dataset.xhtml?persistentId=doi:10.34894/U9HSPV。