Lake dynamics in the tundra of Western Greenland from 1969-2017
We analyzed changes in small lake count (<10,000 m2), large lake count (>10,000 m2), and lake surface area across the periglacial tundra of western Greenland, using historical satellite and aerial imagery and weather data from the late 1960s- present. Overall, we found a decrease in lake count...
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Arctic Data Center
2019
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dataone:urn:uuid:3456a563-6629-47c6-871f-b6603bd6a970 2024-10-03T18:45:54+00:00 Lake dynamics in the tundra of Western Greenland from 1969-2017 Rebecca Finger Higgens Tundra surrounding Kangerlussuaq, Greenland ENVELOPE(-52.10512,-49.599003,67.21446,66.53643) BEGINDATE: 2018-01-05T00:00:00Z ENDDATE: 2018-09-28T00:00:00Z 2019-01-01T00:00:00Z https://search.dataone.org/view/urn:uuid:3456a563-6629-47c6-871f-b6603bd6a970 unknown Arctic Data Center lake drying evaporation historical weather data Kangerlussuaq, Greenland Dataset 2019 dataone:urn:node:ARCTIC 2024-10-03T18:12:02Z We analyzed changes in small lake count (<10,000 m2), large lake count (>10,000 m2), and lake surface area across the periglacial tundra of western Greenland, using historical satellite and aerial imagery and weather data from the late 1960s- present. Overall, we found a decrease in lake count (21%) and surface area (2%) across our study region. Specifically, smaller ponds were particularly prone to change, with decreases of 28% in count and 15% in surface area. Shrinking lakes often became revegetated by both emergent aquatic and terrestrial vegetation, which captures potential successional trajectories following Arctic lake drying. Additionally, while annual precipitation may be increasing, it occurred primarily during the winter months in the form of snow which may or may not contribute to the overall growing season water budget. Conversely, the peak growing season months of June, July, and August all have experienced significant increases in potential evaporation rates, thus likely creating a water deficit for a bulk of the growing season. Dataset Arctic Greenland Kangerlussuaq Tundra Arctic Data Center (via DataONE) Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) ENVELOPE(-52.10512,-49.599003,67.21446,66.53643) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
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unknown |
topic |
lake drying evaporation historical weather data Kangerlussuaq, Greenland |
spellingShingle |
lake drying evaporation historical weather data Kangerlussuaq, Greenland Rebecca Finger Higgens Lake dynamics in the tundra of Western Greenland from 1969-2017 |
topic_facet |
lake drying evaporation historical weather data Kangerlussuaq, Greenland |
description |
We analyzed changes in small lake count (<10,000 m2), large lake count (>10,000 m2), and lake surface area across the periglacial tundra of western Greenland, using historical satellite and aerial imagery and weather data from the late 1960s- present. Overall, we found a decrease in lake count (21%) and surface area (2%) across our study region. Specifically, smaller ponds were particularly prone to change, with decreases of 28% in count and 15% in surface area. Shrinking lakes often became revegetated by both emergent aquatic and terrestrial vegetation, which captures potential successional trajectories following Arctic lake drying. Additionally, while annual precipitation may be increasing, it occurred primarily during the winter months in the form of snow which may or may not contribute to the overall growing season water budget. Conversely, the peak growing season months of June, July, and August all have experienced significant increases in potential evaporation rates, thus likely creating a water deficit for a bulk of the growing season. |
format |
Dataset |
author |
Rebecca Finger Higgens |
author_facet |
Rebecca Finger Higgens |
author_sort |
Rebecca Finger Higgens |
title |
Lake dynamics in the tundra of Western Greenland from 1969-2017 |
title_short |
Lake dynamics in the tundra of Western Greenland from 1969-2017 |
title_full |
Lake dynamics in the tundra of Western Greenland from 1969-2017 |
title_fullStr |
Lake dynamics in the tundra of Western Greenland from 1969-2017 |
title_full_unstemmed |
Lake dynamics in the tundra of Western Greenland from 1969-2017 |
title_sort |
lake dynamics in the tundra of western greenland from 1969-2017 |
publisher |
Arctic Data Center |
publishDate |
2019 |
url |
https://search.dataone.org/view/urn:uuid:3456a563-6629-47c6-871f-b6603bd6a970 |
op_coverage |
Tundra surrounding Kangerlussuaq, Greenland ENVELOPE(-52.10512,-49.599003,67.21446,66.53643) BEGINDATE: 2018-01-05T00:00:00Z ENDDATE: 2018-09-28T00:00:00Z |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) ENVELOPE(-55.633,-55.633,72.633,72.633) ENVELOPE(-52.10512,-49.599003,67.21446,66.53643) |
geographic |
Arctic Arctic Lake Greenland Kangerlussuaq |
geographic_facet |
Arctic Arctic Lake Greenland Kangerlussuaq |
genre |
Arctic Greenland Kangerlussuaq Tundra |
genre_facet |
Arctic Greenland Kangerlussuaq Tundra |
_version_ |
1811922101917974528 |