Hubbard Brook Experimental Forest (USDA Forest Service): Instantaneous Streamflow by Watershed, 1956 - present
TITLE
Hubbard Brook Experimental Forest (USDA Forest Service): Instantaneous Streamflow 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
Nicholas Grant
USDA Forest Service, Hubbard Brook Experimental Forest
234 Mirror Lake Road
North Woodstock, NH 03262
USA

Phone: (603) 726-8902
ABSTRACT:
Streamflow at 9 watersheds within the Hubbard Brook Experimental Forest has been measured continuously from as early as 1955. Streams are gaged with V-notch weirs at the outlet of each watershed. Height of water behind the weir increases with increased streamflow and is recorded by means of a float attached mechanically to a pen on a spring-wound strip-chart recorder. For each day, 2 to 130 points on the chart trace are digitized, depending on the rate of change of flow. Gage heights are converted to streamflow rate by calibration and conversion factors. There is a discharge value for every digitized point.
Beginning January 1, 2013, instantaneous streamflow data are measured by electronic sensors, and data are provisional as the transition from chart to digital data collection is still under evaluation. Data may be updated before they are finalized. Please contact the dataset creator prior to data use/publication.
KEYWORD SET: Hubbard Brook Ecosystem Study LTER
discharge, ecosystems, flow, forests, gage, gauge, HBR, Hubbard Brook LTER, hydrology, streamflow, streams, water, watersheds, weir.
KEYWORD SET: LTER Core Research Areas
disturbance.
BEGIN DATE
1956
END DATE
2014
LOCATION
Weir 1
West bounding coordinate: -71.726501
East bounding coordinate: -71.726501
North bounding coordinate: 43.952034
South bounding coordinate: 43.952034
Weir 2
West bounding coordinate: -71.724174
East bounding coordinate: -71.724174
North bounding coordinate: 43.953358
South bounding coordinate: 43.953358
Weir 3
West bounding coordinate: -71.722816
East bounding coordinate: -71.722816
North bounding coordinate: 43.954872
South bounding coordinate: 43.954872
Weir 4
West bounding coordinate: -71.725792
East bounding coordinate: -71.725792
North bounding coordinate: 43.950176
South bounding coordinate: 43.950176
Weir 5
West bounding coordinate: -71.731918
East bounding coordinate: -71.731918
North bounding coordinate: 43.948845
South bounding coordinate: 43.948845
Weir 6
West bounding coordinate: -71.735641
East bounding coordinate: -71.735641
North bounding coordinate: 43.949940
South bounding coordinate: 43.949940
Weir 7
West bounding coordinate: -71.767075
East bounding coordinate: -71.767075
North bounding coordinate: 43.927509
South bounding coordinate: 43.927509
Weir 8
West bounding coordinate: -71.759521
East bounding coordinate: -71.759521
North bounding coordinate: 43.929436
South bounding coordinate: 43.929436
Weir 9
West bounding coordinate: -71.747185
East bounding coordinate: -71.747185
North bounding coordinate: 43.926014
South bounding coordinate: 43.926014
LOCATION DESCRIPTION
All gages are on first or second order tributaries of Hubbard Brook. Watersheds 1 through 6 are adjacent south-facing watersheds ordered from west to east as 6, 5, 4, 1, 2, 3. Watersheds 7, 8 and 9 are adjacent north-facing watersheds.
SAMPLE DESIGN
Continuous streamflow is measured at 9 stream gaging stations, at the foot of Watersheds 1 through 9. Each gage consists of a 90 degree or a 120 degree sharp-crested V-notch weir. Gages 5 through 8 have a San Dimas Flume in series with the V-notch weir. Water level in the V-notch stilling basin is recorded continuously on Stevens A-35 streamflow recorders. Water level in the flumes is recorded, when it is high enough, by Belfort FW-1 recorders. During winter, plywood hoods are placed over the V-notches and propane gas heaters keep V-notches, flumes, and wells ice-free. The analog A-35 charts are digitized at Hubbard Brook using a Summagraphics digitizer. Time intervals are arbitrarily selected by the operator, with a minimum of four per day. When flow is higher than the V-notches, an estimated equivalent V-notch gage height is made, either from the gage height in the weir rectangular section, or from the flume record, or by comparison with other gages. This value is then entered via the digitizer menu. Gage heights for V-notch weirs and flumes are converted to volume of dishcarge using standard, published equations. V-notches have been manually calibrated for gage heights < 0.2 ft. (60 mm). The time discharge pairs are converted to streamflow rate at each digitized time.
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.
  • Hornbeck, J.W., Martin, C.W., and Eagar, C. 1997. Summary of water yield experiments at Hubbard Brook Experimental Forest, New Hampshire. Can. J. For. Res. 27:2043-2052.
  • Hornbeck, J.W., Pierce, R.S., and Federer, C.A. 1970. Streamflow changes after forest clearing in New England. Water Resour. Res. 6(4):1124-1132.
  • Likens, G.E., Bormann, F.H., Pierce, R.S., Eaton, J.S., and Johnson, N.M. 1977. Biogeochemistry of a Forested Ecosystem. Springer-Verlag New York Inc. 146 pp.
  • Reinhart, K.G., and Pierce, R.S. 1964. Stream-gaging stations for research on small watersheds. USDA Forest Service Handbook 268. 37 pp.
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: w1_stmflow_1956-2012.txt
Description: Watershed 1 streamflow through 2012
Notes on Data: These data are physically located at USDA Forest Service, Durham, NH. Notes: WS 2 from 1958 through 1963 has been recalculated from punched cards and differs somewhat from older printed output. WS 7 data are missing for 4/14/65 - 4/30/65. The recorder chart is lost. This data has not been estimated.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers

Data file: w2_stmflow_1957-2012.txt
Description: Watershed 2 streamflow through 2012
Notes on Data: These data are physically located at USDA Forest Service, Durham, NH. Notes: WS 2 from 1958 through 1963 has been recalculated from punched cards and differs somewhat from older printed output. WS 7 data are missing for 4/14/65 - 4/30/65. The recorder chart is lost. This data has not been estimated.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers

Data file: w3_stmflow_1957-2012.txt
Description: Watershed 3 streamflow through 2012
Notes on Data: These data are physically located at USDA Forest Service, Durham, NH. Notes: WS 2 from 1958 through 1963 has been recalculated from punched cards and differs somewhat from older printed output. WS 7 data are missing for 4/14/65 - 4/30/65. The recorder chart is lost. This data has not been estimated.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers

Data file: w4_stmflow_1960-2012.txt
Description: Watershed 4 streamflow through 2012
Notes on Data: These data are physically located at USDA Forest Service, Durham, NH. Notes: WS 2 from 1958 through 1963 has been recalculated from punched cards and differs somewhat from older printed output. WS 7 data are missing for 4/14/65 - 4/30/65. The recorder chart is lost. This data has not been estimated.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers

Data file: w5_stmflow_1962-2012.txt
Description: Watershed 5 streamflow through 2012
Notes on Data: These data are physically located at USDA Forest Service, Durham, NH. Notes: WS 2 from 1958 through 1963 has been recalculated from punched cards and differs somewhat from older printed output. WS 7 data are missing for 4/14/65 - 4/30/65. The recorder chart is lost. This data has not been estimated.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers

Data file: w6_stmflow_1963-2012.txt
Description: Watershed 6 streamflow through 2012
Notes on Data: These data are physically located at USDA Forest Service, Durham, NH. Notes: WS 2 from 1958 through 1963 has been recalculated from punched cards and differs somewhat from older printed output. WS 7 data are missing for 4/14/65 - 4/30/65. The recorder chart is lost. This data has not been estimated.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers

Data file: w7_stmflow_1965-2012.txt
Description: Watershed 7 streamflow through 2012
Notes on Data: These data are physically located at USDA Forest Service, Durham, NH. Notes: WS 2 from 1958 through 1963 has been recalculated from punched cards and differs somewhat from older printed output. WS 7 data are missing for 4/14/65 - 4/30/65. The recorder chart is lost. This data has not been estimated.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers

Data file: w8_stmflow_1968-2012.txt
Description: Watershed 8 streamflow through 2012
Notes on Data: These data are physically located at USDA Forest Service, Durham, NH. Notes: WS 2 from 1958 through 1963 has been recalculated from punched cards and differs somewhat from older printed output. WS 7 data are missing for 4/14/65 - 4/30/65. The recorder chart is lost. This data has not been estimated.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers

Data file: w9_stmflow_1995-2012.txt
Description: Watershed 9 streamflow through 2012
Notes on Data: These data are physically located at USDA Forest Service, Durham, NH. Notes: WS 2 from 1958 through 1963 has been recalculated from punched cards and differs somewhat from older printed output. WS 7 data are missing for 4/14/65 - 4/30/65. The recorder chart is lost. This data has not been estimated.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers

Data file: w1_stmflow_2013-2014_5min.txt
Description: Watershed 1 streamflow 2013-2014
Notes on Data: These data are collected by digital sensors (data through 2012 were collected by chart recorders). The digital streamflow files contain an additional field indicating gapfilling method for those observations that were subject to a Quality Control flag. Complete documentation of quality control and gapfilling methods will be available in a forthcoming USDA Forest General Technical Report. In this dataset revision, these data should be considered provisional.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone
6ObservationFlagFlag indicating method of estimation for observations flagged in quality control reviewnoneynone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers
Variable: ObservationFlag
Code
Description
E
Estimated; Example: a relatively short or linear period is gapfilled using either a linear or nearest neighbor fill.
1-9
the corresponding watershed number is used to calculate this value. Example: data flagged as '1' means the value was calculated using corresponding data from watershed 1.
C
Corrected for sensor offset; Example: stream stage data flagged as 'O' previously would have a constant offset applied, and would then be reflagged as 'C'
H
High flow values; Example: stage data calculated from flume data during high flows.

Data file: w2_stmflow_2013-2014_5min.txt
Description: Watershed 2 streamflow 2013-2014
Notes on Data: These data are collected by digital sensors (data through 2012 were collected by chart recorders). The digital streamflow files contain an additional field indicating gapfilling method for those observations that were subject to a Quality Control flag. Complete documentation of quality control and gapfilling methods will be available in a forthcoming USDA Forest General Technical Report. In this dataset revision, these data should be considered provisional.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone
6ObservationFlagFlag indicating method of estimation for observations flagged in quality control reviewnoneynone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers
Variable: ObservationFlag
Code
Description
E
Estimated; Example: a relatively short or linear period is gapfilled using either a linear or nearest neighbor fill.
1-9
the corresponding watershed number is used to calculate this value. Example: data flagged as '1' means the value was calculated using corresponding data from watershed 1.
C
Corrected for sensor offset; Example: stream stage data flagged as 'O' previously would have a constant offset applied, and would then be reflagged as 'C'
H
High flow values; Example: stage data calculated from flume data during high flows.

Data file: w3_stmflow_2013-2014_5min.txt
Description: Watershed 3 streamflow 2013-2014
Notes on Data: These data are collected by digital sensors (data through 2012 were collected by chart recorders). The digital streamflow files contain an additional field indicating gapfilling method for those observations that were subject to a Quality Control flag. Complete documentation of quality control and gapfilling methods will be available in a forthcoming USDA Forest General Technical Report. In this dataset revision, these data should be considered provisional.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone
6ObservationFlagFlag indicating method of estimation for observations flagged in quality control reviewnoneynone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers
Variable: ObservationFlag
Code
Description
E
Estimated; Example: a relatively short or linear period is gapfilled using either a linear or nearest neighbor fill.
1-9
the corresponding watershed number is used to calculate this value. Example: data flagged as '1' means the value was calculated using corresponding data from watershed 1.
C
Corrected for sensor offset; Example: stream stage data flagged as 'O' previously would have a constant offset applied, and would then be reflagged as 'C'
H
High flow values; Example: stage data calculated from flume data during high flows.

Data file: w4_stmflow_2013-2014_5min.txt
Description: Watershed 4 streamflow 2013-2014
Notes on Data: These data are collected by digital sensors (data through 2012 were collected by chart recorders). The digital streamflow files contain an additional field indicating gapfilling method for those observations that were subject to a Quality Control flag. Complete documentation of quality control and gapfilling methods will be available in a forthcoming USDA Forest General Technical Report. In this dataset revision, these data should be considered provisional.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone
6ObservationFlagFlag indicating method of estimation for observations flagged in quality control reviewnoneynone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers
Variable: ObservationFlag
Code
Description
E
Estimated; Example: a relatively short or linear period is gapfilled using either a linear or nearest neighbor fill.
1-9
the corresponding watershed number is used to calculate this value. Example: data flagged as '1' means the value was calculated using corresponding data from watershed 1.
C
Corrected for sensor offset; Example: stream stage data flagged as 'O' previously would have a constant offset applied, and would then be reflagged as 'C'
H
High flow values; Example: stage data calculated from flume data during high flows.

Data file: w5_stmflow_2013-2014_5min.txt
Description: Watershed 5 streamflow 2013-2014
Notes on Data: These data are collected by digital sensors (data through 2012 were collected by chart recorders). The digital streamflow files contain an additional field indicating gapfilling method for those observations that were subject to a Quality Control flag. Complete documentation of quality control and gapfilling methods will be available in a forthcoming USDA Forest General Technical Report. In this dataset revision, these data should be considered provisional.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone
6ObservationFlagFlag indicating method of estimation for observations flagged in quality control reviewnoneynone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers
Variable: ObservationFlag
Code
Description
E
Estimated; Example: a relatively short or linear period is gapfilled using either a linear or nearest neighbor fill.
1-9
the corresponding watershed number is used to calculate this value. Example: data flagged as '1' means the value was calculated using corresponding data from watershed 1.
C
Corrected for sensor offset; Example: stream stage data flagged as 'O' previously would have a constant offset applied, and would then be reflagged as 'C'
H
High flow values; Example: stage data calculated from flume data during high flows.

Data file: w6_stmflow_2013-2014_5min.txt
Description: Watershed 6 streamflow 2013-2014
Notes on Data: These data are collected by digital sensors (data through 2012 were collected by chart recorders). The digital streamflow files contain an additional field indicating gapfilling method for those observations that were subject to a Quality Control flag. Complete documentation of quality control and gapfilling methods will be available in a forthcoming USDA Forest General Technical Report. In this dataset revision, these data should be considered provisional.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone
6ObservationFlagFlag indicating method of estimation for observations flagged in quality control reviewnoneynone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers
Variable: ObservationFlag
Code
Description
E
Estimated; Example: a relatively short or linear period is gapfilled using either a linear or nearest neighbor fill.
1-9
the corresponding watershed number is used to calculate this value. Example: data flagged as '1' means the value was calculated using corresponding data from watershed 1.
C
Corrected for sensor offset; Example: stream stage data flagged as 'O' previously would have a constant offset applied, and would then be reflagged as 'C'
H
High flow values; Example: stage data calculated from flume data during high flows.

Data file: w7_stmflow_2013-2014_5min.txt
Description: Watershed 7 streamflow 2013-2014
Notes on Data: These data are collected by digital sensors (data through 2012 were collected by chart recorders). The digital streamflow files contain an additional field indicating gapfilling method for those observations that were subject to a Quality Control flag. Complete documentation of quality control and gapfilling methods will be available in a forthcoming USDA Forest General Technical Report. In this dataset revision, these data should be considered provisional.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone
6ObservationFlagFlag indicating method of estimation for observations flagged in quality control reviewnoneynone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers
Variable: ObservationFlag
Code
Description
E
Estimated; Example: a relatively short or linear period is gapfilled using either a linear or nearest neighbor fill.
1-9
the corresponding watershed number is used to calculate this value. Example: data flagged as '1' means the value was calculated using corresponding data from watershed 1.
C
Corrected for sensor offset; Example: stream stage data flagged as 'O' previously would have a constant offset applied, and would then be reflagged as 'C'
H
High flow values; Example: stage data calculated from flume data during high flows.

Data file: w8_stmflow_2013-2014_5min.txt
Description: Watershed 8 streamflow 2013-2014
Notes on Data: These data are collected by digital sensors (data through 2012 were collected by chart recorders). The digital streamflow files contain an additional field indicating gapfilling method for those observations that were subject to a Quality Control flag. Complete documentation of quality control and gapfilling methods will be available in a forthcoming USDA Forest General Technical Report.In this dataset revision, these data should be considered provisional.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone
6ObservationFlagFlag indicating method of estimation for observations flagged in quality control reviewnoneynone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers
Variable: ObservationFlag
Code
Description
E
Estimated; Example: a relatively short or linear period is gapfilled using either a linear or nearest neighbor fill.
1-9
the corresponding watershed number is used to calculate this value. Example: data flagged as '1' means the value was calculated using corresponding data from watershed 1.
C
Corrected for sensor offset; Example: stream stage data flagged as 'O' previously would have a constant offset applied, and would then be reflagged as 'C'
H
High flow values; Example: stage data calculated from flume data during high flows.

Data file: w9_stmflow_2013-2014_5min.txt
Description: Watershed 9 streamflow 2013-2014
Notes on Data: These data are collected by digital sensors (data through 2012 were collected by chart recorders). The digital streamflow files contain an additional field indicating gapfilling method for those observations that were subject to a Quality Control flag. Complete documentation of quality control and gapfilling methods will be available in a forthcoming USDA Forest General Technical Report. In this dataset revision, these data should be considered provisional.
ColumnVariableDescriptionUnitsCoded?Missing value label
1WSWatershed numbernoneynone
2DateTimeYYYY-MM-DD HH:MM:SSYYYY-MM-DD HH:MM:SSnnone
3Gage_ftGage height in feetfootnnone
4Discharge_cfsDischarge as cubic feet per secondcubicFeetPerSecondnnone
5Discharge_lsDischarge as liters per secondlitersPerSecondnnone
6ObservationFlagFlag indicating method of estimation for observations flagged in quality control reviewnoneynone

CODES

Variable: WS
Description:
Numbers 1-9 representing the watershed numbers
Variable: ObservationFlag
Code
Description
E
Estimated; Example: a relatively short or linear period is gapfilled using either a linear or nearest neighbor fill.
1-9
the corresponding watershed number is used to calculate this value. Example: data flagged as '1' means the value was calculated using corresponding data from watershed 1.
C
Corrected for sensor offset; Example: stream stage data flagged as 'O' previously would have a constant offset applied, and would then be reflagged as 'C'
H
High flow values; Example: stage data calculated from flume data during high flows.