Hubbard Brook Experimental Forest (US Forest Service): Total Daily Precipitation by Watershed, 1956 - present
TITLE
Hubbard Brook Experimental Forest (US Forest Service): Total Daily Precipitation by Watershed, 1956 - present
PRINCIPAL INVESTIGATOR(s)
John Campbell
USDA Forest Service
271 Mast Rd.
Durham, NH 03824
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:
Watershed precipitation is estimated using the Thiessen Means weighting method. Daily watershed precipitation values are a weighted average of daily precipitation from standard gages in or near the watershed. The weighting factor for each gage is the fraction of the watershed area nearest that gage.
KEYWORD SET: Hubbard Brook Ecosystem Study LTER
ecosystems, forests, gage, gauge, HBR, Hubbard Brook LTER, precipitation, rain, watersheds.
KEYWORD SET: LTER Core Research Areas
disturbance.
BEGIN DATE
1956
END DATE
2014
LOCATION
Watershed 1
West bounding coordinate: -71.731339
East bounding coordinate: -71.726311
North bounding coordinate: 43.959286
South bounding coordinate: 43.952053
Watershed 2
West bounding coordinate: -71.728706
East bounding coordinate: -71.687683
North bounding coordinate: 43.960224
South bounding coordinate: 43.939945
Watershed 3
West bounding coordinate: -71.725502
East bounding coordinate: -71.687683
North bounding coordinate: 43.962128
South bounding coordinate: 43.939945
Watershed 4
West bounding coordinate: -71.737183
East bounding coordinate: -71.687683
North bounding coordinate: 43.958370
South bounding coordinate: 43.939945
Watershed 5
West bounding coordinate: -71.739853
East bounding coordinate: -71.687683
North bounding coordinate: 43.957100
South bounding coordinate: 43.939945
Watershed 6
West bounding coordinate: -71.743462
East bounding coordinate: -71.735649
North bounding coordinate: 43.957001
South bounding coordinate: 43.949928
Watershed 7
West bounding coordinate: -71.773460
East bounding coordinate: -71.687683
North bounding coordinate: 43.948246
South bounding coordinate: 43.916016
Watershed 8
West bounding coordinate: -71.762550
East bounding coordinate: -71.687683
North bounding coordinate: 43.948246
South bounding coordinate: 43.917942
Watershed 9
West bounding coordinate: -71.758507
East bounding coordinate: -71.687683
North bounding coordinate: 43.948246
South bounding coordinate: 43.915962
SAMPLING DESIGN
Precipitation data has been collected with a network of 24 standard and 7 recording rain gages beginning in 1956. See Dataset 13 for collection details.
The analog charts on the recording rain gages are changed approximatley weekly, at which time the accumulation in the standard rain gages is measured. The daily recording rain gage data and weekly standard rain gage data are entered into the computer. Missing data are filled by estimation from other nearby gages. A computer program uses the recording gage data to prorate the standard gage data into daily amounts, and calculates daily precipitation on each gaged watershed by the Thiessen Mean weighting method (Linsley et. al., 1958). A table of weighting values is included in the text file thiessen_weights.txt (below)
WATERSHED AREA (ha)
Values used to calculate total watershed daily precipitation. Precipitation data from each standard rain gage (see Dataset 13) is weighted according to the fraction of the watershed area nearest that gage. Total area and the year data records begin is listed below for each watershed:
WS-1 -- 11.8ha -- 1956
WS-2 -- 15.6ha -- 1957
WS-3 -- 42.4ha -- 1958
WS-4 -- 36.1ha -- 1961
WS-5 -- 21.9ha -- 1962
WS-6 -- 13.2ha -- 1963
WS-7 -- 76.4ha -- 1965
WS-8 -- 59.4ha -- 1969
WS-9 -- 76.1ha -- 1995
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.
  • Linsley, Jr., R.K., Kohler, M.A., and Paulhus, J.L.H. 1958. Hydrology for Engineers. McGraw- Hill Book Co., Inc.
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: (603) 726-8902
Email: hbr-im@lternet.edu

Data file: pwd_all.txt
Description: Daily precipitation for each watershed at the Hubbard Brook Experimental Forest LTER. Temporal coverage varies by watershed according to the table in the Sampling Design section above.
Notes on Data: NOTES: January, 1991, PWD files from 1956-1964 were rechecked. A number of errors were found. Following is a list of the dates on which errors were found, not the actual errors or corrections themselves. Monthly totals were also changed to reflect the corrections. 1956 - 02/02 (missing days 2/29,7/31-no precip) (had extra day 6/31,11/31-no precip) 1957 - 04/17 1958 - 02/01, 02/02, 05/01, 05/02, 05/03, 12/04 1959 - 01/10, 02/03 1960 - 08/29, 08/30 1961 - 04/10, 04/16, 04/26, 08/15, 08/16, missing 10/31-had precip 1962 - 02/23, 06/02, 06/03, 07/22, 07/23, 07/24, 08/28, 08/29 1963 - 04/10, 04/11, 04/23, 04/24, 10/11, 10/12, 12/27 1964 - 05/09, 05/10, 05/15, 05/17, 06/06, 06/07, 06/14, 06/15, 06/16, 09/03, 09/04, 09/05, 09/07, 10/03, 10/04, 11/04, 11/05, 11/06, 12/09, 12/24 Files psdYYYY.txt (dataset 13) are the individual rain gage data used to calulated the watershed level data in this data set (files pwdYYYY.txt) The data is physically stored at the USDA Forest Service, Durham, NH and was last updated in March 2013.
ColumnVariableDescriptionUnitsCoded?Missing value label
1DATESample dateYYYY-MM-DDnnone
2WS_1Daily precipitation for watershed 1millimeterPerDayn
-99.9
3WS_2Daily precipitation for watershed 2millimeterPerDayn
-99.9
4WS_3Daily precipitation for watershed 3millimeterPerDayn
-99.9
5WS_4Daily precipitation for watershed 4millimeterPerDayn
-99.9
6WS_5Daily precipitation for watershed 5millimeterPerDayn
-99.9
7WS_6Daily precipitation for watershed 6millimeterPerDayn
-99.9
8WS_7Daily precipitation for watershed 7millimeterPerDayn
-99.9
9WS_8Daily precipitation for watershed 8millimeterPerDayn
-99.9
10WS_9Daily precipitation for watershed 9millimeterPerDayn
-99.9


MISSING VALUE CODES
Variable
Missing Value Code
Code Explanation
WS_1
-99.9
Data missing or unavailable
WS_2
-99.9
Data missing or unavailable
WS_3
-99.9
Data missing or unavailable
WS_4
-99.9
Data missing or unavailable
WS_5
-99.9
Data missing or unavailable
WS_6
-99.9
Data missing or unavailable
WS_7
-99.9
Data missing or unavailable
WS_8
-99.9
Data missing or unavailable
WS_9
-99.9
Data missing or unavailable