{"dp_type": "Dataset", "free_text": "Soil Temperature"}
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TEROS12 sensors are installed in 40 plots that are distributed along an increasing primary productivity gradient (i.e., with increasing distance from the Marr Ice Piedmont glacier). The sensors are comprised of 5 cm long metal pins that are inserted straight down into the soil and hence, data are collected from the upper 0-5 cm of the soil. There are 4 sites along the gradient (site 1 is closest to the glacier and site 4 is farthest from the glacier), with ten plots at each site. Half of the plots at each site are plots that contain an open-top chamber and the other half of the plots are control (unwarmed) plots. Plot ids will contain \"W\" for warmed plots and \"C\" for control plots. Raw data from the loggers (logged every 20 minutes), as well as an R Markdown file is provided to facilitate reading in and displaying the daily average soil moisture and temperature data at the plot and at the treatment level for each productivity site. Loggers and sensors were installed in December 2022 and were downloaded in November (sites 2-4) and in December (site 1) of 2024. ", "east": -64.0360389, "geometry": ["POINT(-64.06293265 -64.77216805)"], "keywords": "Antarctica; Antarctic Peninsula; Conductivity; Cryosphere; Palmer Station; Soil; Temperature", "locations": "Antarctica; Antarctic Peninsula; Palmer Station", "north": -64.7704833, "nsf_funding_programs": "Antarctic Integrated System Science", "persons": "van Gestel, Natasja", "project_titles": "Antarctica as a Model System for Responses of Terrestrial Carbon Balance to Warming", "projects": [{"proj_uid": "p0010251", "repository": "USAP-DC", "title": "Antarctica as a Model System for Responses of Terrestrial Carbon Balance to Warming"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.7738528, "title": "Soil moisture and soil temperature data (0-5 cm) near Palmer Station, Antarctica", "uid": "601877", "west": -64.0898264}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-64.067 -64.766,-64.05669999999999 -64.766,-64.04639999999999 -64.766,-64.03609999999999 -64.766,-64.02579999999999 -64.766,-64.0155 -64.766,-64.0052 -64.766,-63.994899999999994 -64.766,-63.9846 -64.766,-63.9743 -64.766,-63.964 -64.766,-63.964 -64.7688,-63.964 -64.7716,-63.964 -64.7744,-63.964 -64.77720000000001,-63.964 -64.78,-63.964 -64.7828,-63.964 -64.7856,-63.964 -64.7884,-63.964 -64.7912,-63.964 -64.794,-63.9743 -64.794,-63.9846 -64.794,-63.994899999999994 -64.794,-64.0052 -64.794,-64.0155 -64.794,-64.02579999999999 -64.794,-64.03609999999999 -64.794,-64.04639999999999 -64.794,-64.05669999999999 -64.794,-64.067 -64.794,-64.067 -64.7912,-64.067 -64.7884,-64.067 -64.7856,-64.067 -64.7828,-64.067 -64.78,-64.067 -64.77720000000001,-64.067 -64.7744,-64.067 -64.7716,-64.067 -64.7688,-64.067 -64.766))"], "date_created": "Fri, 03 Jan 2025 00:00:00 GMT", "description": "Environmental conditions are the major drivers of species distribution, and terrestrial Antarctica arguably presents the most dramatic challenges for its inhabitants. Many animals rely on acclimation to enhance their stress tolerance to face unfavorable conditions. Some animals can also rely on their phenotypic plasticity to respond to these unfavorable conditions without the need to slowly experience increasing levels of stress to enhance their stress tolerance (i.e., acclimate). Belgica antarctica can rely on both types of strategies, but since they evolved to live in a habitat with such dramatic environmental changes as Antarctica, they are very sensitive to any type of stress (e.g., a sudden drop in temperature, or a bout of high-speed wind). Studying the extent to which B. antarctica rely on each of these strategies to survive and how environmental variation can shape this species\u2019 biology across distinct populations (i.e., that might experience distinct selective pressures) is important to help us better understand how polyextremophiles adapt and evolve while inhabiting extreme environments. This project focused on studying freeze tolerance in B. antarctica populations populations within Cormorant Island that inhabited three distinct microhabitats over the course of the summer season (January-March).", "east": -63.964, "geometry": ["POINT(-64.0155 -64.78)"], "keywords": "Antarctica; Belgica Antarctica; Cryosphere; Soil Temperature; Temperature", "locations": "Antarctica", "north": -64.766, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Sousa Lima, Cleverson; Michel, Andrew; Hayward, Scott; Teets, Nicholas; Lima, Cleverson de Sousa", "project_titles": null, "projects": null, "repositories": null, "science_programs": null, "south": -64.794, "title": "The effects of microhabitat temperature in phenotypic variation across B. antarctica populations", "uid": "601874", "west": -64.067}, {"awards": "1246203 Gooseff, Michael", "bounds_geometry": ["POLYGON((163.1778 -77.6233,163.17792 -77.6233,163.17804 -77.6233,163.17816 -77.6233,163.17828 -77.6233,163.1784 -77.6233,163.17852 -77.6233,163.17864 -77.6233,163.17876 -77.6233,163.17888 -77.6233,163.179 -77.6233,163.179 -77.63331,163.179 -77.64332,163.179 -77.65333,163.179 -77.66334,163.179 -77.67335,163.179 -77.68336,163.179 -77.69337,163.179 -77.70338,163.179 -77.71339,163.179 -77.7234,163.17888 -77.7234,163.17876 -77.7234,163.17864 -77.7234,163.17852 -77.7234,163.1784 -77.7234,163.17828 -77.7234,163.17816 -77.7234,163.17804 -77.7234,163.17792 -77.7234,163.1778 -77.7234,163.1778 -77.71339,163.1778 -77.70338,163.1778 -77.69337,163.1778 -77.68336,163.1778 -77.67335,163.1778 -77.66334,163.1778 -77.65333,163.1778 -77.64332,163.1778 -77.63331,163.1778 -77.6233))"], "date_created": "Mon, 18 Dec 2017 00:00:00 GMT", "description": "As a part of the project titled \"Collaborative Research: The McMurdo Dry Valleys: A landscape on the threshold of change\", we measured ground temperatures from 0-20cm at three stream bank positions (base, mid-slope, and top) at 4 locations along Crescent Stream in Taylor Valley - 2 on the east bank, 2 on the west bank. The goal was to evaluate differences in thermal conduction and temperature dynamics of the active layers of these locations, in particular, in a stream that has undergone extensive bank erosion since 2012 due to permafrost degradation. One of the datalogging stations had significant technical problems and has very little data compared to the almost 2 years of temperature date from the other 3 stations (2015-2017). ", "east": 163.179, "geometry": ["POINT(163.1784 -77.67335)"], "keywords": "Antarctica; Dry Valleys; Glaciology; Paleoclimate; Permafrost; Soil Temperature; Taylor Valley", "locations": "Dry Valleys; Antarctica; Taylor Valley", "north": -77.6233, "nsf_funding_programs": "Antarctic Integrated System Science", "persons": "Gooseff, Michael N.", "project_titles": "Collaborative Research: THE MCMURDO DRY VALLEYS: A landscape on the Threshold of Change", "projects": [{"proj_uid": "p0000076", "repository": "USAP-DC", "title": "Collaborative Research: THE MCMURDO DRY VALLEYS: A landscape on the Threshold of Change"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -77.7234, "title": "Active Layer Temperatures from Crescent Stream banks, Taylor Valley Antarctica", "uid": "601075", "west": 163.1778}, {"awards": "0838850 Gooseff, Michael", "bounds_geometry": ["POLYGON((-163.3 -77.62,-163.202 -77.62,-163.104 -77.62,-163.006 -77.62,-162.908 -77.62,-162.81 -77.62,-162.712 -77.62,-162.614 -77.62,-162.516 -77.62,-162.418 -77.62,-162.32 -77.62,-162.32 -77.631,-162.32 -77.642,-162.32 -77.653,-162.32 -77.664,-162.32 -77.675,-162.32 -77.686,-162.32 -77.697,-162.32 -77.708,-162.32 -77.719,-162.32 -77.73,-162.418 -77.73,-162.516 -77.73,-162.614 -77.73,-162.712 -77.73,-162.81 -77.73,-162.908 -77.73,-163.006 -77.73,-163.104 -77.73,-163.202 -77.73,-163.3 -77.73,-163.3 -77.719,-163.3 -77.708,-163.3 -77.697,-163.3 -77.686,-163.3 -77.675,-163.3 -77.664,-163.3 -77.653,-163.3 -77.642,-163.3 -77.631,-163.3 -77.62))"], "date_created": "Tue, 01 Jan 2013 00:00:00 GMT", "description": "Two models have been proposed to describe controls over microbial biogeography. One model proposes that microbes are ubiquitously distributed across the global environment, and that environmental conditions select for taxa physiologically adapted to local physical conditions. An alternative model predicts that dispersal is the important limitation to the distribution of microorganisms and that spatial heterogeneity of microbial communities is a result of both dispersal and local environmental limitations. According to both models, spatial heterogeneity of microbial communities may be especially pronounced in extreme ecosystems where the environmental selection for organisms with suitable physiology is most strongly manifest. We propose that Antarctic terrestrial environments are ideal places to examine microbial biogeography for 3 reasons: 1) the pristine nature and remoteness of Antarctica minimizes the prevalence of exotic species dispersed through human vectors; 2) the extreme conditions of Antarctic environments provide a strong environmental filter which limits the establishment of non-indigenous taxa; and 3) extreme heterogeneity in the terrestrial environment provides natural gradients of soil conditions (temperature, water and nutrient availability). In the proposed research we will investigate the influence of snow on the composition and spatial distribution of soil microbial communities and linked biogeochemical cycling in the McMurdo Dry Valleys. We will conduct fieldwork at the landscape scale (repeated remote sensing to characterize snow distribution), at the valley and patch scales (quantify snow patch ablation, microbial communities and biogeochemical cycling in subnivian soils). We hypothesize that snow patches play an important role in structuring the spatial distribution of soil microbial communities and their associated ecosystem functioning because of the physical and hydrological influences that snow patches have on the soil environment. The research will contribute to greater public awareness of the importance of polar research to fundamental questions of biology, ecology and hydrology through direct linkages with International Antarctic Institute public outreach activities, including dissemination of web-based learning units on environmental science and microbiology, targeted as resources for secondary and post-secondary educators. Three graduate students, one postdoctoral scholar and multiple undergraduates will participate in the research activities.\n", "east": -162.32, "geometry": ["POINT(-162.81 -77.675)"], "keywords": "Antarctica; Critical Zone; Mps-1 Water Potential Sensor; Physical Properties; Soil Moisture; Soil Temperature", "locations": "Antarctica", "north": -77.62, "nsf_funding_programs": null, "persons": "Gooseff, Michael N.", "project_titles": "Collaborative Research: The Role of Snow Patches on the Spatial Distribution of Soil Microbial Communities and Biogeochemical Cycling in the Antarctic Dry Valleys", "projects": [{"proj_uid": "p0000489", "repository": "USAP-DC", "title": "Collaborative Research: The Role of Snow Patches on the Spatial Distribution of Soil Microbial Communities and Biogeochemical Cycling in the Antarctic Dry Valleys"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -77.73, "title": "The Role of Snow Patches on the Spatial Distribution of Soil Microbial Communities and Biogeochemical Cycling in the Antarctic Dry Valleys", "uid": "600100", "west": -163.3}]
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| Dataset Title/Abstract/Map | NSF Award(s) | Date Created | PIs / Scientists | Project Links | Abstract | Bounds Geometry | Geometry | Selected | Visible |
|---|---|---|---|---|---|---|---|---|---|
|
Soil moisture and soil temperature data (0-5 cm) near Palmer Station, Antarctica
|
1947562 |
2025-01-03 | van Gestel, Natasja |
Antarctica as a Model System for Responses of Terrestrial Carbon Balance to Warming |
This data set contains soil temperature, soil moisture, and soil conductivity data in the vicinity of Palmer Station. TEROS12 sensors are installed in 40 plots that are distributed along an increasing primary productivity gradient (i.e., with increasing distance from the Marr Ice Piedmont glacier). The sensors are comprised of 5 cm long metal pins that are inserted straight down into the soil and hence, data are collected from the upper 0-5 cm of the soil. There are 4 sites along the gradient (site 1 is closest to the glacier and site 4 is farthest from the glacier), with ten plots at each site. Half of the plots at each site are plots that contain an open-top chamber and the other half of the plots are control (unwarmed) plots. Plot ids will contain "W" for warmed plots and "C" for control plots. Raw data from the loggers (logged every 20 minutes), as well as an R Markdown file is provided to facilitate reading in and displaying the daily average soil moisture and temperature data at the plot and at the treatment level for each productivity site. Loggers and sensors were installed in December 2022 and were downloaded in November (sites 2-4) and in December (site 1) of 2024. | ["POLYGON((-64.0898264 -64.7704833,-64.08444765 -64.7704833,-64.07906890000001 -64.7704833,-64.07369015 -64.7704833,-64.0683114 -64.7704833,-64.06293265 -64.7704833,-64.0575539 -64.7704833,-64.05217515 -64.7704833,-64.04679639999999 -64.7704833,-64.04141765 -64.7704833,-64.0360389 -64.7704833,-64.0360389 -64.77082025,-64.0360389 -64.77115719999999,-64.0360389 -64.77149415,-64.0360389 -64.7718311,-64.0360389 -64.77216805,-64.0360389 -64.772505,-64.0360389 -64.77284195,-64.0360389 -64.7731789,-64.0360389 -64.77351585,-64.0360389 -64.7738528,-64.04141765 -64.7738528,-64.04679639999999 -64.7738528,-64.05217515 -64.7738528,-64.0575539 -64.7738528,-64.06293265 -64.7738528,-64.0683114 -64.7738528,-64.07369015 -64.7738528,-64.07906890000001 -64.7738528,-64.08444765 -64.7738528,-64.0898264 -64.7738528,-64.0898264 -64.77351585,-64.0898264 -64.7731789,-64.0898264 -64.77284195,-64.0898264 -64.772505,-64.0898264 -64.77216805,-64.0898264 -64.7718311,-64.0898264 -64.77149415,-64.0898264 -64.77115719999999,-64.0898264 -64.77082025,-64.0898264 -64.7704833))"] | ["POINT(-64.06293265 -64.77216805)"] | false | false |
|
The effects of microhabitat temperature in phenotypic variation across B. antarctica populations
|
1850988 |
2025-01-03 | Sousa Lima, Cleverson; Michel, Andrew; Hayward, Scott; Teets, Nicholas; Lima, Cleverson de Sousa | No project link provided | Environmental conditions are the major drivers of species distribution, and terrestrial Antarctica arguably presents the most dramatic challenges for its inhabitants. Many animals rely on acclimation to enhance their stress tolerance to face unfavorable conditions. Some animals can also rely on their phenotypic plasticity to respond to these unfavorable conditions without the need to slowly experience increasing levels of stress to enhance their stress tolerance (i.e., acclimate). Belgica antarctica can rely on both types of strategies, but since they evolved to live in a habitat with such dramatic environmental changes as Antarctica, they are very sensitive to any type of stress (e.g., a sudden drop in temperature, or a bout of high-speed wind). Studying the extent to which B. antarctica rely on each of these strategies to survive and how environmental variation can shape this species’ biology across distinct populations (i.e., that might experience distinct selective pressures) is important to help us better understand how polyextremophiles adapt and evolve while inhabiting extreme environments. This project focused on studying freeze tolerance in B. antarctica populations populations within Cormorant Island that inhabited three distinct microhabitats over the course of the summer season (January-March). | ["POLYGON((-64.067 -64.766,-64.05669999999999 -64.766,-64.04639999999999 -64.766,-64.03609999999999 -64.766,-64.02579999999999 -64.766,-64.0155 -64.766,-64.0052 -64.766,-63.994899999999994 -64.766,-63.9846 -64.766,-63.9743 -64.766,-63.964 -64.766,-63.964 -64.7688,-63.964 -64.7716,-63.964 -64.7744,-63.964 -64.77720000000001,-63.964 -64.78,-63.964 -64.7828,-63.964 -64.7856,-63.964 -64.7884,-63.964 -64.7912,-63.964 -64.794,-63.9743 -64.794,-63.9846 -64.794,-63.994899999999994 -64.794,-64.0052 -64.794,-64.0155 -64.794,-64.02579999999999 -64.794,-64.03609999999999 -64.794,-64.04639999999999 -64.794,-64.05669999999999 -64.794,-64.067 -64.794,-64.067 -64.7912,-64.067 -64.7884,-64.067 -64.7856,-64.067 -64.7828,-64.067 -64.78,-64.067 -64.77720000000001,-64.067 -64.7744,-64.067 -64.7716,-64.067 -64.7688,-64.067 -64.766))"] | ["POINT(-64.0155 -64.78)"] | false | false |
|
Active Layer Temperatures from Crescent Stream banks, Taylor Valley Antarctica
|
1246203 |
2017-12-18 | Gooseff, Michael N. |
Collaborative Research: THE MCMURDO DRY VALLEYS: A landscape on the Threshold of Change |
As a part of the project titled "Collaborative Research: The McMurdo Dry Valleys: A landscape on the threshold of change", we measured ground temperatures from 0-20cm at three stream bank positions (base, mid-slope, and top) at 4 locations along Crescent Stream in Taylor Valley - 2 on the east bank, 2 on the west bank. The goal was to evaluate differences in thermal conduction and temperature dynamics of the active layers of these locations, in particular, in a stream that has undergone extensive bank erosion since 2012 due to permafrost degradation. One of the datalogging stations had significant technical problems and has very little data compared to the almost 2 years of temperature date from the other 3 stations (2015-2017). | ["POLYGON((163.1778 -77.6233,163.17792 -77.6233,163.17804 -77.6233,163.17816 -77.6233,163.17828 -77.6233,163.1784 -77.6233,163.17852 -77.6233,163.17864 -77.6233,163.17876 -77.6233,163.17888 -77.6233,163.179 -77.6233,163.179 -77.63331,163.179 -77.64332,163.179 -77.65333,163.179 -77.66334,163.179 -77.67335,163.179 -77.68336,163.179 -77.69337,163.179 -77.70338,163.179 -77.71339,163.179 -77.7234,163.17888 -77.7234,163.17876 -77.7234,163.17864 -77.7234,163.17852 -77.7234,163.1784 -77.7234,163.17828 -77.7234,163.17816 -77.7234,163.17804 -77.7234,163.17792 -77.7234,163.1778 -77.7234,163.1778 -77.71339,163.1778 -77.70338,163.1778 -77.69337,163.1778 -77.68336,163.1778 -77.67335,163.1778 -77.66334,163.1778 -77.65333,163.1778 -77.64332,163.1778 -77.63331,163.1778 -77.6233))"] | ["POINT(163.1784 -77.67335)"] | false | false |
|
The Role of Snow Patches on the Spatial Distribution of Soil Microbial Communities and Biogeochemical Cycling in the Antarctic Dry Valleys
|
0838850 |
2013-01-01 | Gooseff, Michael N. |
Collaborative Research: The Role of Snow Patches on the Spatial Distribution of Soil Microbial Communities and Biogeochemical Cycling in the Antarctic Dry Valleys |
Two models have been proposed to describe controls over microbial biogeography. One model proposes that microbes are ubiquitously distributed across the global environment, and that environmental conditions select for taxa physiologically adapted to local physical conditions. An alternative model predicts that dispersal is the important limitation to the distribution of microorganisms and that spatial heterogeneity of microbial communities is a result of both dispersal and local environmental limitations. According to both models, spatial heterogeneity of microbial communities may be especially pronounced in extreme ecosystems where the environmental selection for organisms with suitable physiology is most strongly manifest. We propose that Antarctic terrestrial environments are ideal places to examine microbial biogeography for 3 reasons: 1) the pristine nature and remoteness of Antarctica minimizes the prevalence of exotic species dispersed through human vectors; 2) the extreme conditions of Antarctic environments provide a strong environmental filter which limits the establishment of non-indigenous taxa; and 3) extreme heterogeneity in the terrestrial environment provides natural gradients of soil conditions (temperature, water and nutrient availability). In the proposed research we will investigate the influence of snow on the composition and spatial distribution of soil microbial communities and linked biogeochemical cycling in the McMurdo Dry Valleys. We will conduct fieldwork at the landscape scale (repeated remote sensing to characterize snow distribution), at the valley and patch scales (quantify snow patch ablation, microbial communities and biogeochemical cycling in subnivian soils). We hypothesize that snow patches play an important role in structuring the spatial distribution of soil microbial communities and their associated ecosystem functioning because of the physical and hydrological influences that snow patches have on the soil environment. The research will contribute to greater public awareness of the importance of polar research to fundamental questions of biology, ecology and hydrology through direct linkages with International Antarctic Institute public outreach activities, including dissemination of web-based learning units on environmental science and microbiology, targeted as resources for secondary and post-secondary educators. Three graduate students, one postdoctoral scholar and multiple undergraduates will participate in the research activities. | ["POLYGON((-163.3 -77.62,-163.202 -77.62,-163.104 -77.62,-163.006 -77.62,-162.908 -77.62,-162.81 -77.62,-162.712 -77.62,-162.614 -77.62,-162.516 -77.62,-162.418 -77.62,-162.32 -77.62,-162.32 -77.631,-162.32 -77.642,-162.32 -77.653,-162.32 -77.664,-162.32 -77.675,-162.32 -77.686,-162.32 -77.697,-162.32 -77.708,-162.32 -77.719,-162.32 -77.73,-162.418 -77.73,-162.516 -77.73,-162.614 -77.73,-162.712 -77.73,-162.81 -77.73,-162.908 -77.73,-163.006 -77.73,-163.104 -77.73,-163.202 -77.73,-163.3 -77.73,-163.3 -77.719,-163.3 -77.708,-163.3 -77.697,-163.3 -77.686,-163.3 -77.675,-163.3 -77.664,-163.3 -77.653,-163.3 -77.642,-163.3 -77.631,-163.3 -77.62))"] | ["POINT(-162.81 -77.675)"] | false | false |
