The extent and variability of storm-induced temperature changes in lakes measured with long-term and high-frequency data.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00553269" target="_blank" >RIV/60077344:_____/21:00553269 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/lno.11739" target="_blank" >https://doi.org/10.1002/lno.11739</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/lno.11739" target="_blank" >10.1002/lno.11739</a>
Alternative languages
Result language
angličtina
Original language name
The extent and variability of storm-induced temperature changes in lakes measured with long-term and high-frequency data.
Original language description
The intensity and frequency of storms are projected to increase in many regions of the world because of climate change. Storms can alter environmental conditions in many ecosystems. In lakes and reservoirs, storms can reduce epilimnetic temperatures from wind-induced mixing with colder hypolimnetic waters, direct precipitation to the lake's surface, and watershed runoff. We analyzed 18 long-term and high-frequency lake datasets from 11 countries to assess the magnitude of wind- vs. rainstorm-induced changes in epilimnetic temperature. We found small day-to-day epilimnetic temperature decreases in response to strong wind and heavy rain during stratified conditions. Day-to-day epilimnetic temperature decreased, on average, by 0.28 degrees C during the strongest windstorms (storm mean daily wind speed among lakes: 6.7 +/- 2.7 m s(-1), 1 SD) and by 0.15 degrees C after the heaviest rainstorms (storm mean daily rainfall: 21.3 +/- 9.0 mm). The largest decreases in epilimnetic temperature were observed >= 2 d after sustained strong wind or heavy rain (top 5(th) percentile of wind and rain events for each lake) in shallow and medium-depth lakes. The smallest decreases occurred in deep lakes. Epilimnetic temperature change from windstorms, but not rainstorms, was negatively correlated with maximum lake depth. However, even the largest storm-induced mean epilimnetic temperature decreases were typically <2 degrees C. Day-to-day temperature change, in the absence of storms, often exceeded storm-induced temperature changes. Because storm-induced temperature changes to lake surface waters were minimal, changes in other limnological variables (e.g., nutrient concentrations or light) from storms may have larger impacts on biological communities than temperature changes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10501 - Hydrology
Result continuities
Project
<a href="/en/project/GA15-13750S" target="_blank" >GA15-13750S: Phytoplankton responses to environmental forcing – lessons learned from 30-year monitoring of the Římov Reservoir</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Limnology and Oceanography
ISSN
0024-3590
e-ISSN
1939-5590
Volume of the periodical
66
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
1979-1992
UT code for WoS article
000637487000001
EID of the result in the Scopus database
2-s2.0-85103662959