As part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project, ice thickness and density are measured annually for several lakes located throughout this region of Antarctica. Ice thickness is measured from the bottom of the ice cover to the piezometric water level and to the top of the ice cover. Because most limnological sampling holes are drilled in low-lying areas, it was thought that ice thickness measurements were biased. Therefore, random ice thickness measurements were performed in a 1000 m2 sampling grid on each lake in past years.
Dataset Results
1989-11-16 to 2023-01-07
10.6073/pasta/515c54434ee203a7611ed7db1e2501ae
67
An important part of the McMurdo Long Term Ecological Research (LTER) project is monitoring of spatial and temporal patterns, and processes that control primary production in perennial ice-covered lakes. This data package addresses this core area of research by quantifying chlorophyll-a concentrations within specific depths along the water column of several lakes located across the McMurdo Dry Valleys region of Antarctica.
Date Range:
1993-10-27 to 2023-01-07
Data sources:
DOI:
10.6073/pasta/8621e8d2332c8b65aae4d272d055eb1d
Dataset ID:
44
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a series of Taylor Valley lakes have been monitored for conductivity, temperature, and depth (CTD). A Seabird instrument was used to record CTD profiles in these perennial ice covered lakes.
Date Range:
1993-12-06 to 2023-01-07
Data sources:
DOI:
10.6073/pasta/650871571843bde5e0db6fb52cf549a4
Dataset ID:
88
This data package provides a summary of "limno runs" performed each season in lakes located throughout the McMurdo Dry Valleys of Antarctica as part of the McMurdo Dry Valleys Long Term Ecological Research program. Each limno run is identified by unique code that allows one to compile a complete set of limnological data from a particular lake and location at specific time points.
Date Range:
1991-11-21 to 2023-01-07
Data sources:
DOI:
10.6073/pasta/fafc7bc34b22d2e9a93f75e632cfb9d3
Dataset ID:
39
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, lakes are monitored for photosynthetic active radiation (PAR) levels. This data set exemplifies the vertical profile of underwater PAR profiles in perennial ice covered lakes and ambient PAR measured at the air-ice interface. Profile data can be used to calculate extinction coefficients for the water column and ice layer.
Date Range:
1993-10-28 to 2023-01-07
Data sources:
DOI:
10.6073/pasta/89139a7d28cef6b4dce8b4ff29b39d0c
Dataset ID:
46
Manual lake level surveys are conducted each season for several lakes across the McMurdo Dry Valleys of Antarctica. This data package includes lake levels for Lake Fryxell, Lake Hoare, and Lake Bonney, located in Taylor Valley; Lake Vanda and Don Juan Pond, located in Wright Valley; Lake Vida, located in Victoria Valley; Lake Miers, located in Miers Valley; and Lake House and Lake Joyce, located in Pearse Valley.
Date Range:
1991-01-26 to 2023-01-26
Data sources:
DOI:
10.6073/pasta/927439563d37c9461011e0060a5c1a87
Dataset ID:
68