Seasonal Dynamics of a High Arctic Lake, Lake Linne, Spitsbergen Island, Svalbard
The purpose of this project is to characterize the physical processes in Lake Linne, Spitsbergen Island, Svalbard, that lead to heterogeneous water temperatures during the high arctic summer. When adequately defined, this lake can be used in studies of global warming effects in high arctic lakes. We...
Main Author: | |
---|---|
Format: | Text |
Language: | unknown |
Published: |
Cornerstone: A Collection of Scholarly and Creative Works for Minnesota State University, Mankato
2005
|
Subjects: | |
Online Access: | https://cornerstone.lib.mnsu.edu/urs/2005/poster-session-C/7 |
id |
ftminnesotastuni:oai:cornerstone.lib.mnsu.edu:urs-3183 |
---|---|
record_format |
openpolar |
spelling |
ftminnesotastuni:oai:cornerstone.lib.mnsu.edu:urs-3183 2023-05-15T14:53:35+02:00 Seasonal Dynamics of a High Arctic Lake, Lake Linne, Spitsbergen Island, Svalbard Schimek, Melanie 2005-04-26T17:00:00Z https://cornerstone.lib.mnsu.edu/urs/2005/poster-session-C/7 unknown Cornerstone: A Collection of Scholarly and Creative Works for Minnesota State University, Mankato https://cornerstone.lib.mnsu.edu/urs/2005/poster-session-C/7 Undergraduate Research Symposium Climate Fresh Water Studies Hydrology text 2005 ftminnesotastuni 2022-04-27T05:40:44Z The purpose of this project is to characterize the physical processes in Lake Linne, Spitsbergen Island, Svalbard, that lead to heterogeneous water temperatures during the high arctic summer. When adequately defined, this lake can be used in studies of global warming effects in high arctic lakes. We analyzed available atmospheric and lake temperature data for the period of July 31 through September 4,2003. For July 31 through August 19, surface water temperatures increased from 4°C to 7°C, and then fell to 5.8°C at the end of the observational period. This trend corresponds to concomitant air temperature changes. The increase lags shortly behind warm southerly weather while the cooling trend follows weak northerly winds. Anomalies in water temperature trends correspond to an unsettled time of variable wind azimuth. Thermal stratification in shallow water is lost during periods of strong southerly wind in response to an upwelling event. Our observations indicate that air temperature is the dominant control on water temperature at shelf and open water sites through ten meters of water depth. However, strong southerly winds can cause vertical and horizontal changes in water temperature through upwelling, and lateral displacement of surface water. Thus, our single-season data indicate that lake water temperatures are proxies of atmospheric temperature although strong winds perturb the system. Text Arctic Global warming Svalbard Spitsbergen Minnesota State University, Mankato: Cornerstone Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Svalbard |
institution |
Open Polar |
collection |
Minnesota State University, Mankato: Cornerstone |
op_collection_id |
ftminnesotastuni |
language |
unknown |
topic |
Climate Fresh Water Studies Hydrology |
spellingShingle |
Climate Fresh Water Studies Hydrology Schimek, Melanie Seasonal Dynamics of a High Arctic Lake, Lake Linne, Spitsbergen Island, Svalbard |
topic_facet |
Climate Fresh Water Studies Hydrology |
description |
The purpose of this project is to characterize the physical processes in Lake Linne, Spitsbergen Island, Svalbard, that lead to heterogeneous water temperatures during the high arctic summer. When adequately defined, this lake can be used in studies of global warming effects in high arctic lakes. We analyzed available atmospheric and lake temperature data for the period of July 31 through September 4,2003. For July 31 through August 19, surface water temperatures increased from 4°C to 7°C, and then fell to 5.8°C at the end of the observational period. This trend corresponds to concomitant air temperature changes. The increase lags shortly behind warm southerly weather while the cooling trend follows weak northerly winds. Anomalies in water temperature trends correspond to an unsettled time of variable wind azimuth. Thermal stratification in shallow water is lost during periods of strong southerly wind in response to an upwelling event. Our observations indicate that air temperature is the dominant control on water temperature at shelf and open water sites through ten meters of water depth. However, strong southerly winds can cause vertical and horizontal changes in water temperature through upwelling, and lateral displacement of surface water. Thus, our single-season data indicate that lake water temperatures are proxies of atmospheric temperature although strong winds perturb the system. |
format |
Text |
author |
Schimek, Melanie |
author_facet |
Schimek, Melanie |
author_sort |
Schimek, Melanie |
title |
Seasonal Dynamics of a High Arctic Lake, Lake Linne, Spitsbergen Island, Svalbard |
title_short |
Seasonal Dynamics of a High Arctic Lake, Lake Linne, Spitsbergen Island, Svalbard |
title_full |
Seasonal Dynamics of a High Arctic Lake, Lake Linne, Spitsbergen Island, Svalbard |
title_fullStr |
Seasonal Dynamics of a High Arctic Lake, Lake Linne, Spitsbergen Island, Svalbard |
title_full_unstemmed |
Seasonal Dynamics of a High Arctic Lake, Lake Linne, Spitsbergen Island, Svalbard |
title_sort |
seasonal dynamics of a high arctic lake, lake linne, spitsbergen island, svalbard |
publisher |
Cornerstone: A Collection of Scholarly and Creative Works for Minnesota State University, Mankato |
publishDate |
2005 |
url |
https://cornerstone.lib.mnsu.edu/urs/2005/poster-session-C/7 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake Svalbard |
geographic_facet |
Arctic Arctic Lake Svalbard |
genre |
Arctic Global warming Svalbard Spitsbergen |
genre_facet |
Arctic Global warming Svalbard Spitsbergen |
op_source |
Undergraduate Research Symposium |
op_relation |
https://cornerstone.lib.mnsu.edu/urs/2005/poster-session-C/7 |
_version_ |
1766325188526342144 |