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<p>Glacier albedo controls surface energy balance and mass balance but remains poorly observed in remote sub-Antarctic regions. We present a glacier albedo dataset for Heard Island (53°06’S, 73°31’E) derived from NASA VIIRS VNP43 BRDF/albedo parameters for January 2012 to May 2024. The dataset includes a glacier-wide area-mean time series (4,466 daily albedo records) and annual albedo rasters at 375–500 m resolution. White-sky albedo (WSA) was computed from BRDF parameters with quality filtering (mandatory quality ≤ 1). Processing used Google Earth Engine with glacier masking and interior buffering (1 pixel, 375 m). Temporal data availability is 98.9%; spatial coverage is 44.04% of the glacier area due to cloud cover. The dataset is suitable for glacier surface energy balance studies, trend analysis, and integration with climate reanalysis. Data are provided in CSV and GeoTIFF formats with accompanying quality metadata.</p>

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Heard Island glacier albedo from VIIRS satellite observations 2012 to 2024

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月30日

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  • Wang Lin,
  • Wang Feiteng,
  • Du Zhencai,
  • Ming Jing

摘要

Glacier albedo controls surface energy balance and mass balance but remains poorly observed in remote sub-Antarctic regions. We present a glacier albedo dataset for Heard Island (53°06’S, 73°31’E) derived from NASA VIIRS VNP43 BRDF/albedo parameters for January 2012 to May 2024. The dataset includes a glacier-wide area-mean time series (4,466 daily albedo records) and annual albedo rasters at 375–500 m resolution. White-sky albedo (WSA) was computed from BRDF parameters with quality filtering (mandatory quality ≤ 1). Processing used Google Earth Engine with glacier masking and interior buffering (1 pixel, 375 m). Temporal data availability is 98.9%; spatial coverage is 44.04% of the glacier area due to cloud cover. The dataset is suitable for glacier surface energy balance studies, trend analysis, and integration with climate reanalysis. Data are provided in CSV and GeoTIFF formats with accompanying quality metadata.