Transect snowpack ablation data for Green Lakes Valley, 1993 - 2005.

Lowering of the snowpack surface by ablation (melt) was estimated on a biweekly to weekly basis in the Green Lakes Valley during the summer months. Poles were driven into the snowpack to form transects in several snow-accumulation areas (Arikaree Glacier, Green Lakes 4 and 5, and the Martinelli basin). The height difference (cm) between the snow surface and the top of each pole was recorded. On the subsequent visit the new height difference was recorded and the pole was driven into the snow and the reset height was recorded. Poles in a given transect were relocated as necessary during the course of the season.

夏季期间，在绿湖谷（Green Lakes Valley）中，针对因消融（融雪）导致的积雪层表面降低量，以每两周至每周的频次开展估算。研究人员在多处积雪积累区（阿里卡雷冰川（Arikaree Glacier）、绿湖4号与5号区域以及马丁内利盆地（Martinelli basin））内打入测杆以布设样带。研究人员记录了积雪表面与每根测杆顶端之间的高度差（单位：厘米）。在后续的回访中，先记录新的高度差，随后将测杆重新打入积雪中，并记录重置后的高度值。在整个观测季内，可根据实际需要对指定样带内的测杆进行重新定位。