Influence of long-distance climate teleconnection on seasonality of water temperature in the world's largest lake--Lake Baikal, Siberia

Stephen L Katz; Stephanie E Hampton; Lyubov R Izmest'eva; Marianne V Moore

doi:10.1371/journal.pone.0014688

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Influence of long-distance climate teleconnection on seasonality of water temperature in the world's largest lake--Lake Baikal, Siberia

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Influence of long-distance climate teleconnection on seasonality of water temperature in the world's largest lake--Lake Baikal, Siberia

Stephen L Katz, Stephanie E Hampton, Lyubov R Izmest'eva and Marianne V Moore

PloS one, Vol.6(2), pp.e14688-e14688

02/16/2011

DOI: https://doi.org/10.1371/journal.pone.0014688

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https://hdl.handle.net/2376/107598

PMCID: PMC3040185

PMID: 21359207

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Abstract

Geography

Climate

Temperature

Time Factors

Models, Biological

Ecosystem

Siberia

Fresh Water

Photoperiod

Seasons

Water - physiology

Large-scale climate change is superimposed on interacting patterns of climate variability that fluctuate on numerous temporal and spatial scales--elements of which, such as seasonal timing, may have important impacts on local and regional ecosystem forcing. Lake Baikal in Siberia is not only the world's largest and most biologically diverse lake, but it has exceptionally strong seasonal structure in ecosystem dynamics that may be dramatically affected by fluctuations in seasonal timing. We applied time-frequency analysis to a near-continuous, 58-year record of water temperature from Lake Baikal to examine how seasonality in the lake has fluctuated over the past half century and to infer underlying mechanisms. On decadal scales, the timing of seasonal onset strongly corresponds with deviation in the zonal wind intensity as described by length of day (LOD); on shorter scales, these temperature patterns shift in concert with the El Nino-Southern Oscillation (ENSO). Importantly, the connection between ENSO and Lake Baikal is gated by the cool and warm periods of the Pacific Decadal Oscillation (PDO). Large-scale climatic phenomena affecting Siberia are apparent in Lake Baikal surface water temperature data, dynamics resulting from jet stream and storm track variability in central Asia and across the Northern Hemisphere.

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Title: Influence of long-distance climate teleconnection on seasonality of water temperature in the world's largest lake--Lake Baikal, Siberia
Creators: Stephen L Katz - Channel Islands National Marine Sanctuary, National Oceanographic and Atmospheric Administration, Santa Barbara, California, United States of America. steve.katz@noaa.gov
Stephanie E Hampton
Lyubov R Izmest'eva
Marianne V Moore
Publication Details: PloS one, Vol.6(2), pp.e14688-e14688
Academic Unit: Center for Environmental Research, Education, and Outreach; Environment, School of the (CAS)
Publisher: United States
Identifiers: 99900546768101842
Language: English
Resource Type: Journal article