Alexandra Fiord Wet Tundra Ecosystem [Welker, J., J. Fahnestock] https://data.eol.ucar.edu/dataset/46.647 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. Identifiers * Local archive identifier: 46.647 * doi:10.5065/D689140J https://doi.org/10.5065/D689140J Versions 1.0 Citation Welker, J., Fahnestock, J. 2007. Alexandra Fiord Wet Tundra Ecosystem. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D689140J Accessed 29 Mar 2024. Additional citation styles can be generated by entering the DOI at CrossCite (https://citation.crosscite.org/). Acknowledgement In addition to the citation reference and any other acknowledgements, please acknowledge NCAR/EOL in your publications with text such as: Data provided by NCAR/EOL under the sponsorship of the National Science Foundation. https://data.eol.ucar.edu/ Related projects * ATLAS: Arctic Transitions in the Land-Atmosphere System https://data.eol.ucar.edu/project/ATLAS * ITEX: International Tundra Experiment https://data.eol.ucar.edu/project/ITEX Additional information * Spatial Type: point * Frequency: other * Language: English ISO Topic Categories * climatologyMeteorologyAtmosphere Categories * Arctic * Surface * Trace Gases * Vegetation Platforms * Fixed Observation Stations Instruments * IRGA - Infrared Gas Analyzers Sites * Alexandra Fiord GCMD Science Keywords * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE * EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS * EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > RESPIRATION RATE * EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA > ARCTIC TUNDRA Documentation * alex_frd_wet_tndr_meta.txt [4 KiB] https://data.eol.ucar.edu/file/download/414FD3BD/alex_frd_wet_tndr_meta.txt Related links * info: ATLAS Data Policy https://data.eol.ucar.edu/arctic_projects/atlas/ATLAS_DM_Plan.html * homepage: ITEX EOL Homepage https://www.eol.ucar.edu/field_projects/itex * homepage: EOL ATLAS website https://www.eol.ucar.edu/field_projects/atlas Temporal coverage * Begin datetime: 1999-08-04 00:00:00 * End datetime: 2001-08-04 23:59:59 Spatial coverage * Maximum (North) Latitude: 78.54 * Minimum (South) Latitude: 78.54 * Minimum (West) Longitude: -75.55 * Maximum (East) Longitude: -75.55 Primary contact information * pointOfContact: Jeff M. Welker https://data.eol.ucar.edu/contact/show/257 Additional contact information * author: Jeff M. Welker https://data.eol.ucar.edu/contact/show/257 * author: Jace Fahnestock https://data.eol.ucar.edu/contact/show/1137 * principalInvestigator: Jeff M. Welker https://data.eol.ucar.edu/contact/show/257 * principalInvestigator: Jace Fahnestock https://data.eol.ucar.edu/contact/show/1137 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/46.647?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/46.647?format=isotc211