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hbr0060
Solar Radiation
Hubbard Brook Experimental Forest (US Forest Service): Daily Solar Radiation Measurements, 1959 - 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
2016
Daily solar radiation has been measured at Hubbard Brook
Experimental Forest Headquarters since 1959, using several different
sensors. Radiation was recorded continuously first by a Belfort
pyranograph and later by a Weather Measure pyranograph. The
pyranograph has been at its current Headquarter location since 1960
and before that at weather station 1, near weir 1. With the
installation of the automatic weather station in 1981, a LiCor
pyranometer was collocated with the pyranograph and used as the
primary radiation sensor. The pyranograph operated until 2000 as a
back up. Solar radiation is now sampled by the LiCor sensor once per
minute and hourly and daily means are calculated by a Campbell CR-21
Data logger and reported in Mj/m2.
climate
ecosystems
forests
HBR
Hubbard Brook LTER
solar radiation
weather
Hubbard Brook Ecosystem Study
LTER
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=60
Hubbard Brook Experimental Forest station
headquarters
-71.700975
-71.700975
43.945733
43.945733
830
830
foot
1959-01-01
2009-12-31
Information Manager, Hubbard Brook LTER
234 Mirror Lake Road
North Woodstock
NH
03262
USA
Phone: (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
Hubbard Brook LTER
SAMPLING DESIGN
Daily solar radiation has been
measured at HBEF Headquarters since 1959, using
several different sensors. Solar radiation has
been recorded continuously by a Belfort
pyranograph and later by a Weather Measure
pyranograph. The instrument has been at its
current Headquarter location since 1960 and
before that at weather station 1, near weir 1.
With the installation of the automatic weather
station in 1981, a LiCor pyranometer was
collocated with the pyranograph and used as the
primary radiation sensor. The pyranograph
operated until 2000 as a back up. Solar
radiation is now sampled by the LiCor sensor
once a minute and hourly means are calculated by
a Campbell CR-21 Data logger.
DATA DESCRIPTION
Solar radiation data are dumped
hourly to a data storage module, which is
changed and downloaded monthly. Where LiCor data
are not available, pyranograph data have been
used. The pyranograph chart is changed weekly.
Because of rapid fluctuation, instantaneous
readings cannot be obtained from the pyranograph
on partly cloudy days. The pyranograph chart is
digitized visually, using a digitizer, for each
2-hour increment throughout the day. Daily means
are reported in Mj/m2.
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.
An Analysis of the Sublimation at Hubbard Brook
Experimental Forest
J.
Molloy
2013
Masters of Science Thesis
Plymouth State
University
Belfort pyranograph
Weather measure pyranograph
LiCor pyranometer
LiCor sensor
Campbell CR-21 Data logger
rad
Solar radiation data for the Hubbard Brook
LTER
rad.txt
ASCII
1
0
\r\n
column
0x2c
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NOTES
Although all sensors appear to have been
within about +/- 5 percent of the true value, users should
be aware that bias may exist in the radiation data
and may change over time.
There are no data available for the full
year of 1965.
The data is physically located at the
USDA Forest Service, Durham, NH and was last updated
in March 2013.
Date
Date
Sample date
YYYY-MM-DD
1 day
HQ
HQ
Solar radiation measured at
Headquarters
megaJoulePerSquareMeter
0.01
real
-99.99
Data missing or not taken at
time
A measure of solar radiation energy per unit
area