uid=HBR,o=LTER,dc=ecoinformatics,dc=org
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hbr0002
Streamflow Daily by Watershed
Hubbard Brook Experimental Forest (USDA Forest Service):
Daily Streamflow by Watershed, 1956 - present
John
Campbell
USDA Forest Service
271 Mast Rd.
Durham
NH
03824
USA
(603)-868-7643
Hubbard Brook Experimental Forest
LTER
234 Mirror Lake Road
North Woodstock
NH
03262
USA
Phone: (603) 726-8902
http://www.hubbardbrook.org
Amey
Bailey
USDA Forest Service, Hubbard Brook
Experimental Forest
234 Mirror Lake Road
North Woodstock
NH
03262
USA
(603) 726-8902
associated researcher
Nicholas
Grant
USDA Forest Service, Hubbard Brook
Experimental Forest
234 Mirror Lake Road
North Woodstock
NH
03262
USA
(603) 726-8902
associated researcher
2016
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. Gage height is converted to streamflow
rate by calibration factors and then integrated to generate
daily streamflow. Streamflow rate is measured as volume per
unit time(L/s) and is proportional to the watershed
area.
Beginning January 1, 2013, instantaneous streamflow
data (and derived daily streamflow) 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. Daily streamflow data are derived from the
instantaneous streamflow record, and additional information
(quality control flagging and gapfilling) can be found in
that record
http://www.hubbardbrook.org/data/dataset.php?id=1
discharge
ecosystems
flow
forests
gage
gauge
HBR
Hubbard Brook LTER
hydrology
streamflow
streams
water
watersheds
weir
Hubbard Brook Ecosystem Study
LTER
disturbance
LTER Core Research Areas
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.
http://www.hubbardbrook.org/data/data_policy.php?target=2
Weir 1
-71.726501
-71.726501
43.952034
43.952034
Weir 2
-71.724174
-71.724174
43.953358
43.953358
Weir 3
-71.722816
-71.722816
43.954872
43.954872
Weir 4
-71.725792
-71.725792
43.950176
43.950176
Weir 5
-71.731918
-71.731918
43.948845
43.948845
Weir 6
-71.735641
-71.735641
43.949940
43.949940
Weir 7
-71.767075
-71.767075
43.927509
43.927509
Weir 8
-71.759521
-71.759521
43.929436
43.929436
Weir 9
-71.747185
-71.747185
43.926014
43.926014
1956
2014
Information Manager, Hubbard Brook
LTER
234 Mirror Lake Road
North Woodstock
NH
03262
USA
(603) 726-8902
hbr-im@lternet.edu
http://www.hubbardbrook.org
Hubbard Brook Experimental Forest
LTER
234 Mirror Lake Road
North Woodstock
NH
03262
USA
Phone: (603) 726-8902
http://www.hubbardbrook.org
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 ratios 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 and then
integrated to daily and monthly streamflow.
CALCULATIONS
HBEF daily stream flow for each of the nine gaged
water sheds is published in units of mm/day. This
measurement is a depth (mm) of water over the entire
watershed. Conversion factors and the formulas for
converting from ft3/sec to mm/day and from mm/day to
ft3/sec are provided.
WS1: 29.20 acres = 1,271,952.0 ft2
WS2: 38.58 acres = 1,680,544.8 ft2
WS3: 104.71 acres = 4,561,167.6 ft2
WS4: 89.215 acres = 3,886,205.4 ft2
WS5: 54.05 acres = 2,354,418.0 ft2
WS6: 32.69 acres = 1,423,976.4 ft2
WS7: 191.18 acres = 8,327,800.8 ft2
WS8: 146.70 acres = 6,390,252.0 ft2
WS9: 168.90 acres = 7,357,284.0 ft2
Converting ft3/sec to mm/day (mm is depth over
entire watershed area):
WS1: 1 ft3/sec * 1/1,271,952.0 ft2 * 86,400
sec/day *12inches/ft * 25.4 mm/inch = 20.70
mm/day
WS2: 1 ft3/sec * 1/1,680,544.8 ft2 * 86,400
sec/day *12inches/ft * 25.4 mm/inch = 15.67
mm/day
WS3: 1 ft3/sec * 1/4,561,167.6 ft2 * 86,400
sec/day *12inches/ft * 25.4 mm/inch = 5.77
mm/day
WS4: 1 ft3/sec * 1/3,886,205.4 ft2 * 86,400
sec/day *12inches/ft * 25.4 mm/inch = 6.78
mm/day
WS5: 1 ft3/sec * 1/2,354,418.0 ft2 * 86,400
sec/day *12inches/ft * 25.4 mm/inch = 11.19
mm/day
WS6: 1 ft3/sec * 1/1,423,976.4 ft2 * 86,400
sec/day *12inches/ft * 25.4 mm/inch = 18.49
mm/day
WS7: 1 ft3/sec * 1/8,327,800.8 ft2 * 86,400
sec/day *12inches/ft * 25.4 mm/inch = 3.16
mm/day
WS8: 1 ft3/sec * 1/6,390,252.0 ft2 * 86,400
sec/day *12inches/ft * 25.4 mm/inch = 4.12
mm/day
WS9: 1 ft3/sec * 1/7,357,284.0 ft2 * 86,400
sec/day *12inches/ft * 25.4 mm/inch = 3.58
mm/day
Converting mm/day to ft3/sec:
WS1: 1 mm/day * 1,271,952.0 ft2 * day/86,400 sec
* ft/12inches * inch/25.4 mm = .0483 ft3/sec
WS2: 1 mm/day * 1,680,544.8 ft2 * day/86,400 sec
* ft/12inches * inch/25.4 mm = .0638 ft3/sec
WS3: 1 mm/day * 4,561,167.6 ft2 * day/86,400 sec
* ft/12inches * inch/25.4 mm = .1732 ft3/sec
WS4: 1 mm/day * 3,886,205.4 ft2 * day/86,400 sec
* ft/12inches * inch/25.4 mm = .1476 ft3/sec
WS5: 1 mm/day * 2,354,418.0 ft2 * day/86,400 sec
* ft/12inches * inch/25.4 mm = .0894 ft3/sec
WS6: 1 mm/day * 1,423,976.4 ft2 * day/86,400 sec
* ft/12inches * inch/25.4 mm = .0541 ft3/sec
WS7: 1 mm/day * 8,327,800.8 ft2 * day/86,400 sec
* ft/12inches * inch/25.4 mm = .3162 ft3/sec
WS8: 1 mm/day * 6,390,252.0 ft2 * day/86,400 sec
* ft/12inches * inch/25.4 mm = .2427 ft3/sec
WS9: 1 mm/day * 7,357,284.0 ft2 * day/86,400 sec
* ft/12inches * inch/25.4 mm = .2794 ft3/sec
Hydrometeorological database for Hubbard Brook
Experimental Forest: 1955-2000
A.S.
Bailey
J.W.
Hornbeck
J.L.
Campbell
C.
Eagar
2003
english
Gen. Tech. Rep. NE-305
Newtown Square, PA., U.S., USDA
Forest Service Northeastern Research
Station
36 pp.
Long-term trends from ecosystem research at the
Hubbard Brook Experimental Forest
J.L.
Campbell
C.T.
Driscoll
C.
Eagar
G.E.
Likens
T.G.
Siccama
C.E.
Johnson
T.J.
Fahey
S.P.
Hamburg
R.T.
Holmes
abailey
D.C.
Buso
2007
english
Gen. Tech. Rep. NRS-17
Newtown Square, PA., U.S., USDA
Forest Service Northeastern Research
Station
41 pp.
Summary of water yield experiments at Hubbard
Brook Experimental Forest, New Hampshire
J.W.
Hornbeck
C.W.
Martin
C.
Eagar
1997
english
Can. J. For. Res.
27
2043-2052
Streamflow changes after forest clearing in New
England
hornbeck
R.S.
Pierce
C.A.
Federer
1970
Water Resour. Res.
6
4
1124-1132
Biogeochemistry of a Forested Ecosystem
likens
F.H.
Bormann
pierce
J.S.
Eaton
N.M.
Johnson
1977
Springer-Verlag New York
Inc.
146 pp.
Stream-gaging stations for research on small
watersheds
K.G.
Reinhart
pierce
1964
USDA Forest Service Handbook
268
37 pp.
swd_all
Daily streamflow by watershed at Hubbard
Brook LTER
swd_all.txt
ASCII
1
0
\r\n
column
0x2c
http://www.hubbardbrook.org/data/data_policy.php?;target=swd_all.txt
uid=HBR,o=LTER,dc=ecoinformatics,dc=org
all
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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. The STRFLO program was not run for this
month, so the entire month is missing.
DATE
Date
Sample date
YYYY-MM-DD
1
WS_1
Watershed 1
Streamflow at watershed
1
millimeterPerDay
0.001
real
-99.000
Data missing or not taken for this
watershed at this time
WS_2
Watershed 2
Streamflow at watershed
2
millimeterPerDay
0.001
real
-99.000
Data missing or not taken for this
watershed at this time
WS_3
Watershed 3
Streamflow at watershed
3
millimeterPerDay
0.001
real
-99.000
Data missing or not taken for this
watershed at this time
WS_4
Watershed 4
Streamflow at watershed
4
millimeterPerDay
0.001
real
-99.000
Data missing or not taken for this
watershed at this time
WS_5
Watershed 5
Streamflow at watershed
5
millimeterPerDay
0.001
real
-99.000
Data missing or not taken for this
watershed at this time
WS_6
Watershed 6
Streamflow at watershed
6
millimeterPerDay
0.001
real
-99.000
Data missing or not taken for this
watershed at this time
WS_7
Watershed 7
Streamflow at watershed
7
millimeterPerDay
0.001
real
-99.000
Data missing or not taken for this
watershed at this time
WS_8
Watershed 8
Streamflow at watershed
8
millimeterPerDay
0.001
real
-99.000
Data missing or not taken for this
watershed at this time
WS_9
Watershed 9
Streamflow at watershed
9
millimeterPerDay
0.001
real
-99.000
Data missing or not taken for this
watershed at this time
millimeter per day, used for
measurement of streamflow