DWCZ - CO - Gordon Gulch 1 & 2 - SWE Along Snow Pole Transects - (GG1-GG2-SWE) - (2023–2024)

Snow Water Equivalent (SWE) was measured using a calibrated scale, including the mass of the tube (units: cm).

For north-facing aspects, “downslope” refers to the area between the lowest snow pole and the second-lowest snow pole, while “upslope” refers to the area between the highest snow pole and the second-highest snow pole. For south-facing aspects, data were collected between the two snow poles, and the upslope/downslope distinction is left blank.

Location: Gordon Gulch (GG1 = lower, GG2 = upper), Arapaho National Forest, Colorado (~2590 m). Gordon Gulch joins North Boulder Creek about 16 km downstream from Green Lakes Valley (GLV). The site is underlain by biotite gneiss and is mostly forested. Contrasting slopes produce differences in soils and vegetation: thinner, less-weathered rock with grasses and Ponderosa pine (Pinus ponderosa) on south-facing slopes, and thicker, more weathered rock with dense Lodgepole pine (Pinus contorta) on north-facing slopes.

The area is characterized by low-relief remnants of a dissected Tertiary erosion surface, with weathered rock profiles up to 15 m thick. Gordon Gulch lies within the montane climatic zone, with a mean annual precipitation (MAP) of ~780 mm, 70% of which falls as snow.

Number of replicates was recorded for each date × aspect × plot combination.

雪水当量（Snow Water Equivalent，SWE）通过经过校准的秤具进行测量，测量值包含雪管质量，单位为厘米（cm）。

对于朝北坡而言，“下坡”指最低雪杆与次低雪杆之间的区域，“上坡”则指最高雪杆与次高雪杆之间的区域。对于朝南坡，数据采集于两根雪杆之间，且未标注上坡/下坡的区分信息。

研究地点位于科罗拉多州阿拉帕霍国家森林的戈登峡谷（Gordon Gulch，其中GG1代表下游样地，GG2代表上游样地），海拔约2590米。戈登峡谷在绿湖谷（Green Lakes Valley，GLV）下游约16公里处汇入北博尔德溪。该样地的基底为黑云母片麻岩，区域内植被以森林为主。坡向差异导致土壤与植被出现分异：朝南坡分布着较薄且风化程度较低的岩石，伴生草本植物与黄松（Pinus ponderosa）；朝北坡则分布着较厚且风化程度更高的岩石，伴生茂密的扭叶松（Pinus contorta）。

该区域以受切割的第三纪侵蚀面的低起伏残余体为典型特征，风化岩剖面厚度可达15米。戈登峡谷属于山地气候带，年平均降水量（Mean Annual Precipitation，MAP）约为780毫米，其中70%以降雪形式降落。

针对每个日期×坡向×样地的组合，均记录了重复样本的数量。