Hubbard Brook Experimental Forest (USDA Forest Service): Daily Mean Temperature Data, 1955 - present
TITLE
Hubbard Brook Experimental Forest (USDA Forest Service): Daily Mean Temperature Data, 1955 - present
PRINCIPAL INVESTIGATOR(s)
John Campbell
USDA Forest Service
271 Mast Rd.
Durham, NH
USA

Phone: (603) 868-7643
OTHERS INVOLVED
Amey Bailey
USDA Forest Service, Hubbard Brook Experimental Forest
234 Mirror Lake Road
North Woodstock, NH 03262
USA

Phone: (603) 726-8902
ABSTRACT:
Air temperature is measured at seven locations within the rain gage clearings throughout Hubbard Brook. The oldest air temperature record dates back to October 20, 1955 at Station 1. Since that time, temperature measurements have been made continuously using hygrothermographs housed in standard shelters.
KEYWORD SET: Hubbard Brook Ecosystem Study LTER
air temperature, climate, forests, HBR, Hubbard Brook LTER, mean temperature, temperature, weather.
BEGIN DATE
1955
END DATE
2014
LOCATION
Weather Station 1
West bounding coordinate: -71.724838
East bounding coordinate: -71.724838
North bounding coordinate: 43.952121
South bounding coordinate: 43.952121
Weather Station 1A
West bounding coordinate: -71.724838
East bounding coordinate: -71.724838
North bounding coordinate: 43.952121
South bounding coordinate: 43.952121
Weather Station 6
West bounding coordinate: -71.734865
East bounding coordinate: -71.734865
North bounding coordinate: 43.957242
South bounding coordinate: 43.957242
Weather Station 14
West bounding coordinate: -71.765606
East bounding coordinate: -71.765606
North bounding coordinate: 43.920799
South bounding coordinate: 43.920799
Weather Station 17
West bounding coordinate: -71.758228
East bounding coordinate: -71.758228
North bounding coordinate: 43.919026
South bounding coordinate: 43.919026
Weather Station 23
West bounding coordinate: -71.746926
East bounding coordinate: -71.746926
North bounding coordinate: 43.927201
South bounding coordinate: 43.927201
Weather Station 24
West bounding coordinate: -71.750355
East bounding coordinate: -71.750355
North bounding coordinate: 43.919715
South bounding coordinate: 43.919715
Adjacent to Headquarters building (HQ)
West bounding coordinate: -71.700975
East bounding coordinate: -71.700975
North bounding coordinate: 43.945733
South bounding coordinate: 43.945733
SAMPLING DESIGN
Air temperature is currently measured at seven locations. Six locations are in rain gage openings: 1/1A, 6, 14, 17, 23, and 24. One location is the Headquarters building. At each station, air temperature (and usually relative humidity) are recorded by Belfort hygrothermographs housed in standard Stevenson screens, 5 feet off the ground. Standard, maximum and minimum thermometers are housed in the shelters alongside the hygrothermographs for weekly calibration checks of the current, max and min temperatures captured on the chart. The hygrothermograph charts are changed weekly, at which time the thermometers are read. Daily maximum and minimum temperatures are read manually from the charts. Correction for disagreement with the standard thermometers are seldom made as agreement is usually within 2 degrees F. The hygrothermographs are readjusted annually and rotated from site to site after lab calibration to prevent instrument bias. Charts are read for daily max and min and the mean is calculated from those 2 numbers. Maximum and minimum temperatures are converted from Fahrenheit to Celsius.
AIR TEMPERATURE COLLECTION PERIODS
The following list includes the start date for the data collected from each Hygrothermograph. Collections are ongoing.
Station 1 -- 1955-10-20
Station HQ (22) -- 1957-01-01
Station 1A -- 1958-01-01
Station 6 -- 1961-01-01
Station 14 -- 1965-01-01
Station 23 -- 1995-09-01
Station 17 -- 1999-01-01
Station 24 -- 1999-01-01
REFERENCES
  • 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.
  • Campbell, J.L., Driscoll, C.T., Eagar, C., Likens, G.E., Siccama, T.G., Johnson, C.E., Fahey, T.J., Hamburg, S.P., Holmes, R.T., Bailey, A.S., and Buso, D.C. 2007. Long-term trends from ecosystem research at the Hubbard Brook Experimental Forest. Gen. Tech. Rep. NRS-17. 41 pp.Newtown Square, PA., U.S., USDA Forest Service Northeastern Research Station.
  • 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.
  • Hamburg, S.P., Vadeboncoeur, M.A., Richardson, A.D., and Bailey, A.S. 2013. Climate change at the ecosystem scale: a 50-year record in New Hampshire. Climatic Change 116(3-4):457.
  • Molloy, J. 2013. An Analysis of the Sublimation at Hubbard Brook Experimental Forest. Masters of Science, Plymouth State University.
DATA ACCESS GUIDELINES
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]. http://hubbardbrook.org/data/dataset.php?id=81 (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.

7) Disclaimer. While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available "as is". The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

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.



CONTACT PERSON

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

Phone: Phone: (603) 726-8902
Email: hbr-im@lternet.edu

Data file: tdm_all.txt
Description: Daily mean temperature measurents at the Hubbard Brook LTER
Notes on Data: NOTES Comparisons among stations should be made with caution because data have not been corrected for possible instrument bias. The value -99 is entered for missing data when the weather station is not operating. Otherwise if a day is missed, the value for that day has been estimated from values at the other stations. Estimated values are not flagged. The Fahrenheit to Celcius conversion and rounding to whole degrees Centigrade leads to considerable underrepresentation of -5, 0, 5, 10, etc. values. The data is physically located at the USDA Forest Service, Durham, NH and was last updated in 2013.
ColumnVariableDescriptionUnitsCoded?Missing value label
1DATESample dateYYYY-MM-DDnnone
2STA_1Mean daily temperature measured at station 1celsiusn
-99
3STA_6Mean daily temperature measured at station 6celsiusn
-99
4STA_14Mean daily temperature measured at station 14celsiusn
-99
5STA_1AMean daily temperature measured at station 1A (co-located with station 1)celsiusn
-99
6STA_HQMean daily temperature measured at the headquarters building (Station 22)celsiusn
-99
7STA_23Mean daily temperature measured at station 23celsiusn
-99
8STA_17Mean daily temperature measured at station 17celsiusn
-99
9STA_24Mean daily temperature measured at station 24celsiusn
-99


MISSING VALUE CODES
Variable
Missing Value Code
Code Explanation
STA_1
-99
Data missing or not taken at this time
STA_6
-99
Data missing or not taken at this time
STA_14
-99
Data missing or not taken at this time
STA_1A
-99
Data missing or not taken at this time
STA_HQ
-99
Data missing or not taken at this time
STA_23
-99
Data missing or not taken at this time
STA_17
-99
Data missing or not taken at this time
STA_24
-99
Data missing or not taken at this time