| Title: |
Active Layer Depth Data for the BBC collapse scar for 2003 and 2004
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| Contacts: |
Myers-Smith, Isla
Chapin, F.S.
Harden, Jennifer
McGuire, A.
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| Abstract: |
This data set contains active layer depth measurements (cm) for a transect from the center of the BBC collapse scar (0 m) into the surrounding fire scar (30 m) of the Survey Line Fire (burned in June-July 2001). Data were collected using a 120m (and during 2004 a 205.5 m) permafrost probe at every visit to the site in 2003 and 2004. Three permafrost depth measurements were made within a 25cm radius at every point along the transect (0, 3, 6, 9, 12, 15, 18, 21, 24, 27, and 30 m on the east and west sides of the boardwalk and at 33 m on the west side only).
This data set was collected to monitor the increase in active layer throughout the growing season to relate this to measured fluxes of CO2 and CH4 emissions from soils along the same transect. The data set was also used to monitor permafrost collapse at the margins of the BBC collapse scar.
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| Keywords: |
disturbance, permafrost, soil temperature, |
| Categories: |
Climate
Disturbance
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| Study Period: |
May 1, 2003 to Sep 10, 2004
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| Bounding Box: |
West longitude: -148.3334833°
North latitude: 64.6408°
East longitude: -148.3334833°
South latitude: 64.6408°
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| Site References: |
BBC collapse scar -- The BBC collapse scar is located in Interior Alaska, USA, adjacent to the Bonanza Creek LTER on the south side of the Tanana River, approximately half way between Fairbanks and Nenana. The scar is located 0.5 km south of the river bank in a low lying black spruce tussock dominated wetland that was burned in June-July 2001 by the Survey Line fire.
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| Data Columns: |
| Column |
Name |
Units |
Type |
| 1 |
year |
yyyy |
Datetime |
| 2 |
DOY |
ddd |
Datetime |
| 3 |
Distance (m) |
meters |
integer |
| 4 |
Side of Transect |
none |
string |
| 5 |
Active Layer Depth (cm) Measurement 1 |
centimeter |
float |
| 6 |
Active Layer Depth (cm) Measurement 2 |
centimeter |
float |
| 7 |
Active Layer Depth (cm) Measurement 3 |
centimeter |
float |
| 8 |
Mean Active Layer Depth (cm) |
centimeter |
float |
|
| Data File(s): |
206_active_layer_depth_bbc.csv
|
| Supplemental Files: |
|
| Metadata Formats: |
|
| Public Release: |
Nov 21, 2005
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| Publications: |
Myers-Smith, I., A.D. McGuire, J.W. Harden, and F.S. Chapin III. 2007. The influence of disturbance on carbon exchange in a permafrost collapse and adjacent burned forest. Journal of Geophysical Research - Biosciences 112, G04017, doi:10.1029 2007JG000423.
Myers-Smith, I.H., J.W. Harden, M. Wilmking, C.C. Fuller, A.D. McGuire, and F.S. Chapin, III. 2007. Wetland succession in a permafrost collapse: Interactions between fire and thermokarst. Biogeosciences Discussion 4:4507-4538.
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The Bonanza Creek LTER, including this website, is supported by the
National Science Foundation through awards
DEB-0620579,
DEB-0423442,
DEB-0080609,
DEB-9810217,
DEB-9211769,
DEB-8702629
and by the USDA Forest Service, Pacific Northwest Research Station through agreement number RJVA-PNW-01-JV-11261952-231.
Any opinions, findings, conclusions, or recommendations expressed in the
material are those of the author(s) and do not necessarily reflect
the views of the supporting agencies or the program as a whole.
© Bonanza Creek LTER, 2009.
Last modified 22-Nov-09
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Disclaimer
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