ArticleScientific reports2022
Pigment signatures of algal communities and their implications for glacier surface darkening.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Elevation shapes alpine snow algal blooms and their influence on albedo reduction.The New phytologist · 2026Article
- Surface processes darkening the southwestern ice sheet of Kalaallit Nunaat (Greenland).Science advances · 2026Article
- The diversity and abundance of chytrids on the Greenland Ice Sheet.Scientific reports · 2026Article
- Community-driven variations in snow algae color modulate snow albedo reduction.The New phytologist · 2026Article
- Members of the lichen photobiont genus Trebouxia show species-specific photophysiological and transcriptome-level responses to high light.Journal of experimental botany · 2026Article
- Remote Antarctic Island reveals unique algal dynamics in snow and ice.ISME communications · 2026Article
- Ubiquitous and expanding glacier algal blooms modelled around the Greenland Ice Sheet.Communications earth & environment · 2026Article
- Linking extreme light availability to cellular function in algae-dominated communities on the Greenland Ice Sheet.FEMS microbiology ecology · 2025Article
- Algae-dominated metaproteomes uncover cellular adaptations to life on the Greenland Ice Sheet.NPJ biofilms and microbiomes · 2025Article
- Extraction Strategies for Profiling the Molecular Composition of Particulate Organic Matter on Glacier Surfaces.Environmental science & technology · 2025Article
- Dynamics of organic matter in algal blooms on the Greenland ice sheet.Scientific reports · 2025Article
- Single-cell imaging reveals efficient nutrient uptake and growth of microalgae darkening the Greenland Ice Sheet.Nature communications · 2025Article
- Endometabolic profiling of pigmented glacier ice algae: the impact of sample processing.Metabolomics : Official journal of the Metabolomic Society · 2024Article
- Alpine glacier algal bloom during a record melt year.Frontiers in microbiology · 2024Article
- Remote sensing of ice albedo using harmonized Landsat and Sentinel 2 datasets: validation.International journal of remote sensing · 2024Article
- Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area.ISME communications · 2023Article
- Active and dormant microorganisms on glacier surfaces.Geobiology · 2023Article
- The undiscovered biosynthetic potential of the Greenland Ice Sheet microbiome.Frontiers in microbiology · 2023Article
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Authors and funding
15 authors.
Funding
Abstract
Blooms of pigmented algae darken the surface of glaciers and ice sheets, thereby enhancing solar energy absorption and amplifying ice and snow melt. The impacts of algal pigment and community composition on surface darkening are still poorly understood. Here, we characterise glacier ice and snow algal pigment signatures on snow and bare ice surfaces and study their role in photophysiology and energy absorption on three glaciers in Southeast Greenland. Purpurogallin and astaxanthin esters dominated the glacier ice and snow algal pigment pools (mass ratios to chlorophyll a of 32 and 56, respectively). Algal biomass and pigments impacted chromophoric dissolved organic matter concentrations. Despite the effective absorption of astaxanthin esters at wavelengths where incoming irradiance peaks, the cellular energy absorption of snow algae was 95% lower than anticipated from their pigmentation, due to pigment packaging. The energy absorption of glacier ice algae was consequently ~ 5 × higher. On bare ice, snow algae may have locally contributed up to 13% to total biological radiative forcing, despite contributing 44% to total biomass. Our results give new insights into the impact of algal community composition on bare ice energy absorption and biomass accumulation during snow melt.
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