Meteorological drivers of interannual variation in transparency of mountain lakes
| Autor: | Craig E. Williamson, Masaki Hayashi, Janet M. Fischer, Mark H. Olson |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010506 paleontology
canadian rocky mountains 010504 meteorology & atmospheric sciences Limnology Drainage basin 01 natural sciences lcsh:QH540-549.5 parasitic diseases Turbidity Water transparency Ecology Evolution Behavior and Systematics lcsh:Environmental sciences 0105 earth and related environmental sciences Earth-Surface Processes lcsh:GE1-350 Global and Planetary Change geography geography.geographical_feature_category limnology 15. Life on land Transparency (behavior) turbidity chromophoric dissolved organic matter water transparency 13. Climate action Climatology Environmental science lcsh:Ecology |
| Zdroj: | Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 424-434 (2020) |
| ISSN: | 1938-4246 1523-0430 |
| Popis: | In mountain lakes, water transparency is regulated primarily by materials loaded from the surrounding catchment. Consequently, transparency within a lake can vary over time due to meteorological conditions that affect hydrologic inputs. Furthermore, lake responses to these inputs may depend on catchment characteristics. We examined the relationships between meteorological conditions and interannual variation in transparency over thirteen years in a set of four lakes in Yoho National Park, British Columbia, Canada. We measured mid-summer transparency as the attenuation coefficient of 320 nm and collected meteorological data daily with an automatic weather station located near the study lakes. Despite their close proximity, lakes varied in the strength of associations between transparency and cumulative precipitation across a range of durations. Specifically, transparency in non-glacially fed Lake Hungabee was most strongly correlated with cumulative precipitation in the fifteen days preceding sampling, whereas glacially fed Lakes Opabin and Oesa were most strongly affected by longer periods of cumulative precipitation. Consequently, there was relatively little temporal synchrony in interannual transparency variation among lakes. Our results suggest that both the timing and amount of precipitation as well local hydrology must be considered when predicting effects of climate change on mountain lake ecosystems even within a single region. |
| Databáze: | OpenAIRE |
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