Hubbard Brook Experimental Forest (US Forest Service): Soil Temperature Measurements, 1959 - 1998
Hubbard Brook Experimental Forest (US Forest Service): Soil Temperature Measurements, 1959 - 1998
John Campbell
USDA Forest Service
271 Mast Rd.
Durham, NH 03824

Phone: (603)-868-7643
Amey Bailey
U.S. Forest Service, Hubbard Brook Experimental Forest
234 Mirror Lake Road
North Woodstock, NH 03262

Phone: (603) 726-8902
Soil temperature data were collected approximately weekly at the Hubbard Brook Experimental Forest from 1959 - 1998. Colman temperature-moisture sensors were installed at one location west of weir 4 and replicated (1 and 2) at depths of 3, 8, 15, 30, 46 and 61 cm. Soil resistance was recorded using a manually-operated AC resistance meter then converted to temperature. In 1998 the battery needed to operate the meter to read the sensors was no longer available. No soil temperature data were collected from the last Colman reading in 1998 until the start of a new network collocated with the Colman plots. Two sets of hydroprobes run from a SCAN site (Soil Climate and Analysis Network operated by the NRCS) were placed at the original depths and as close as possible to the original location. Hubbard Brook SCAN data are now available at the NRCS SCAN website from 2002 – present and serve to extend the soil temperature dataset first initiated in 1959 in to the future.
KEYWORD SET: Hubbard Brook Ecosystem Study LTER
climate, forests, HBR, Hubbard Brook LTER, soil, soil depth, soil temperature, temperature.
West of weir 4 (coordinates given correspond to watershed 4 area)
West bounding coordinate: -71.737183
East bounding coordinate: -71.687683
North bounding coordinate: 43.958370
South bounding coordinate: 43.939945
Soil temperature data were measured approximately weekly at one location west of weir 4 from 1959 - 1998. Sensors were replicated (1 and 2) at depths of 3, 8, 15, 30, 46 and 61 cm. The sensors used were Colman fiberglass electrical resistance therimistors. Soil temperature data were collected weekly using a manually-operated AC resistance meter. The resistance dial reading was then converted to temperature using a computer program. Temperature readings are reported in degrees celcius for each soil probe depth on each measurement day. Missing data indicates that the specific probe was not functioning properly on the day readings were taken.
  • Bailey, A.S., Hornbeck, J.W., Campbell, J.L., and Eagar, C. 2003. Hydrometeorological database for Hubbard Brook Experimental Forest: 1955-2000. Gen. Tech. Rep. NE-305. 36 pp.Newtown Square, PA., U.S., USDA Forest Service Northeastern Research Station.
  • Federer, C.A. 1973. Annual cycles of soil and water temperatures at Hubbard Brook. Res. Note. NE-167. 7 pp.U.S. Forest Service,
  • Groffman, P.M., Rustad, L.E., Templer, P.H., Campbell, J.L., Christenson, L.M., Lany, N.K., Socci, A.M., Vadeboncoeur, M.A., Schaberg, P.G., Wilson, G.F., Driscoll, C.T., Fahey, T.J., Fisk, M.C., Goodale, C.L., Green, M.B., Hamburg, S.P., Johnson, C.E., Mitchell, M.J., Morse, J.L., Pardo, L.H., and Rodenhouse, N.L. 2012. Long-Term Integrated Studies Show Complex and Surprising Effects of Climate Change in the Northern Hardwood Forest. Bioscience 62(12):1056-1066.
Data Use Policy

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. Permission to use this dataset is granted to the Data User free of charge subject to the following terms:

1) Acceptable use. Use of the dataset will be restricted to academic, research, government or other not-for-profit professional purposes.

2) Redistribution. The data and metadata are provided for use by the Data User. The Data User will not redistribute the original Data Set or metadata to others without the explicit permission of the Principal Investigator.

3) Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User will properly attribute the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator, Year of Data Publication, Title of Dataset, Publisher, Dataset identifier.

Citation example: Holmes, R.T. 2012. Bird Abundances at Hubbard Brook (1969-2010) and on three replicate plots (1986-2000) in the White Mountain National Forest. Durham, NH. Hubbard Brook Data Archive [Database]. (23 July 2012)

4) Acknowledgment: The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed to its content. Acknowledgments should identify the supporting party, the party that received the support, and any identifying information such as grant numbers.

Acknowledgment example: Data on [topic] were provided by [name of PI] on [date]. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station, Newtown Square, PA. Significant funding for collection of these data was provided by [agency]-[grant number], [agency]-[grant number], etc.

5) Consultation and questions. Data users are strongly encouraged to consult with the Principal Investigator(s) who collected these data for further information. Also, when appropriate, Data Users should consider including the Principal Investigator as a collaborator and/or co-author in the use of these data.

6) Notification. The Data User will notify the Principal Investigator of any publication or derivative work based on the Data Set. The Data User will also provide the Principal Investigator and/or the administrator of the Hubbard Brook Ecosystem Study with a pdf or two reprints of any publication(s) resulting from use of the Data Set.

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8) Terms of Agreement. By accepting this Data Set, the Data User agrees to abide by the terms of this agreement. The Data Owner shall have the right to terminate this agreement immediately by written notice upon the Data User's breach of, or non-compliance with, any of its terms. The Data User may be held responsible for any misuse that is caused or encouraged by the Data User's failure to abide by the terms of this agreement.


Information Manager, Hubbard Brook LTER
234 Mirror Lake Road
North Woodstock, NH 03262

Phone: Phone: (603) 726-8902

Data file: stemp.txt
Description: Soil temperature data at the Hubbard Brook LTER site from 1959 - 1998. Additional Hubbard Brook soil temperature data, starting in 2002, is available from the NRCS SCAN Network.
Notes on Data: The data is physically located at the USDA Forest Service, Durham, NH and was last updated in March 2013.
ColumnVariableDescriptionUnitsCoded?Missing value label
1DATESample dateYYYY-MM-DDnnone
2DEPTHSoil probe depthmillimeternnone
3STACK1Soil temperature sensor measurement, replicate 1celsiusn
4STACK2Soil temperature sensor measurement, replicate 2celsiusn

Missing Value Code
Code Explanation
Data missing or not taken at this time
Data missing or not taken at this time