Alexandra Fiord Wet Tundra Ecosystem. Version 1.0

The data set presented here represents growing season (late-1999, 2000 and 2001) values of net carbon dioxide exchange, photosynthesis, and respiration between the atmosphere and wet tundra. The site is located at Alexandra Fiord on the east-central side of Ellesmere Island, Nunavut, Canada at 78.54...

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Bibliographic Details
Main Authors: Welker, J., Fahnestock, J.
Format: Dataset
Language:English
Published: UCAR/NCAR - Earth Observing Laboratory 2007
Subjects:
climatologyMeteorologyAtmosphere
Surface
Arctic
Infrared Gas Analyzers
In Situ/Laboratory Instruments > Chemical Meters/Analyzers > > > IRGA > Infrared Gas Analyzers > d069d617-1506-4b3c-bda2-55397c232f7f
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > CARBON DIOXIDE > c3b81888-8a39-4b3f-8033-4c077797bcba
EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > RESPIRATION RATE > 29a64468-46a8-4dbc-955d-80b7b4cf9aaf
EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS > 07b53dde-6fea-4662-9d03-ccfd617ca710
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA > ARCTIC TUNDRA > 46ecf46f-a710-4589-82b2-34aebf35c3c0
ATLAS
Arctic Transitions in the Land-Atmosphere System
ATLAS/CODIAC > Arctic Transitions in the Land-Atmosphere System
ITEX
International Tundra Experiment
ITEX > International Tundra Experiment
Alexandra Fiord
Canada
Ellesmere Island
Nunavut
Tundra
Online Access:https://dx.doi.org/10.5065/d689140j
https://data.eol.ucar.edu/dataset/46.647
Description
Summary:The data set presented here represents growing season (late-1999, 2000 and 2001) values of net carbon dioxide exchange, photosynthesis, and respiration between the atmosphere and wet tundra. The site is located at Alexandra Fiord on the east-central side of Ellesmere Island, Nunavut, Canada at 78.54N 75.55W, 50 m elevation asl. As part of the International Tundra Experiment (ITEX), Greg Henry of the University of British Columbia has been increasing air and soil temperatures at this site since 1993 using small open-topped chambers (OTCs). These OTCs are hexagonal in shape and are constructed of transparent fiberglass. They typically raise air and soil temperatures by 1 to 4C. The data set shows periodic carbon dioxide exchange data from the end of the 1999 growing season and throughout the 2000 and 2001 growing seasons in ambient plots and long-term (7-9 yrs) warmed (OTC) plots. The most complete data set (2001) begins in spring before winter snowmelt and ends at the end of summer when snow has once again covered the ground. The data are from 199908040800 to 200108042400 UTC.

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