An important part of the McMurdo Long Term Ecological Research (LTER) is evaluating carbon and nitrogen budgets in perennial ice-covered lakes. This dataset addresses this core area of research and quantifies the particulate organic carbon (POC) and nitrogen (PON) found at specific depths in lakes across the McMurdo Dry Valleys of Antarctica.
Dataset Results
1993-10-27 to 2022-01-08
10.6073/pasta/6d6bbd2e6f348f8237f06afc603d818e
57
Soil communities in the McMurdo Dry Valleys are subject to many limitations, including resource limitations. However, the nutrients that are predominantly limiting to growth and diversity of soil biota are not known. Additionally, landscape history (N deposition, P weathering) and native N and P content (glacial till provenance) may influence the ability of soil communities to respond to nutrient additions or changes in nutrient availability associated with environmental change.
Date Range:
2007-01-15 to 2016-01-15
Data sources:
DOI:
10.6073/pasta/4da6e17a7a8d1e575241b3d79c047f08
Dataset ID:
4013
Knowledge of the McMurdo Dry Valley (MDV) lakes is limited by winter access, a period which is most relevant in understanding the habitability of other icy worlds and critical to understanding the overall function of these lakes. Owing to the lack of winter access, data that normally require human presence are incomplete.
Date Range:
2013-12-13 to 2014-12-14
Data sources:
DOI:
10.6073/pasta/928ab7198ef209d76ea7ab4004ec6be7
Dataset ID:
303
In this data package, we present chlorophyll concentrations, percent loss-on-ignition organic matter, sorbed ammonium concentrations, and percent biogenic silica for hyporheic sediments collected in January 2019 from nine transects across Von Guerard Stream, Taylor Valley, Antarctica. These samples were collected to address questions about the retention and processing of particulate organic matter in the hyporheic zone of McMurdo Dry Valley streams.
Date Range:
2019-01-10
Data sources:
DOI:
10.6073/pasta/3f76ccdf3d330df54aed1aee815dab23
Dataset ID:
9033