Identification

Title

Alexandra Fiord Mesic Tundra Ecosystem [Welker, J., J. Fahnestock]

Alternative title(s)

46.646

Abstract

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 mesic 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 200108062400 UTC.

Resource type

dataset

Resource locator

https://data.eol.ucar.edu/dataset/46.646

protocol: https

name: Alexandra Fiord Mesic Tundra Ecosystem [Welker, J., J. Fahnestock] homepage

description: Dataset homepage

https://data.eol.ucar.edu/cgi-bin/codiac/fgr_form/id=46.646

protocol: https

name: Alexandra Fiord Mesic Tundra Ecosystem [Welker, J., J. Fahnestock] Data Order Form

description: Dataset order request form. Data files are made available via FTP.

function: order

Unique resource identifier

code

46.646

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

climatologyMeteorologyAtmosphere

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

Fixed Observation Stations

Keyword set

keyword value

Trace Gases

Arctic

Surface

Vegetation

Keyword set

keyword value

EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > RESPIRATION RATE

EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA > ARCTIC TUNDRA

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE

EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-02-27

Geographic location

West bounding longitude

-75.55000

East bounding longitude

-75.55000

North bounding latitude

78.54000

South bounding latitude

78.54000

Temporal reference

Temporal extent

Begin position

1999-08-04T00:00:00Z

End position

2001-08-06T23:59:59Z

Dataset reference date

date type

publication

effective date

2007-11-02T13:41:15Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

none

Limitations on public access

none

Responsible organisations

Responsible party

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

name: homepage

responsible party role

pointOfContact

Responsible party

organisation name

University of Alaska - Dept. of Biological Sciences

full postal address

Anchorage

99508

USA

telephone number

907-257-2701

email address

afjmw1@uaa.alaska.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata date

2024-12-26T23:48:46Z

Metadata language