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Cary Environmental Monitoring Program: UV Data 2000-2019
Victoria
R
Kelly
Cary Institute of Ecosystem Studies
kellyv@caryinstitute.org
https://orcid.org/0000-0003-3418-9211
2020-01-10
The Cary Institute of Ecosystem Studies Environmental Monitoring
Program is a long-term data collection program designed to understand
how the environment changes over time. The program includes monitoring
of climate including temperature and precipitation, as well as
variables related to air pollution, such as acid deposition and ozone,
and water pollution and other streamwater chemistry. Our solar
radiation monitoring includes diffuse and global photosynthetically
active radiation (PAR), diffuse and global shortwave radiation, net
radiation and UV. Long-term monitoring of solar radiation provides us
with an understanding of atmospheric energy dynamics, which can affect
natural and human systems. The Cary Institute of Ecosystem Studies,
Environmental Monitoring Program furnishes data under the following
conditions: The data have received quality assurance scrutiny by our
program, and, although we are confident of the accuracy of these data,
the Cary Institute will not be held liable for errors in these data.
Data are subject to change resulting from updates in data screening or
models used. Data citation: The following is a standard citation for
referencing data from the Cary Institute of Ecosystem Studies,
Environmental Monitoring Program: Cary Institute of Ecosystem Studies,
Environmental Monitoring Program. 2008 (or current year). Cary
Institute of Ecosystem Studies, Box AB, Millbrook, NY 12545,
www.caryinstitute.org. Those wishing to publish data from the Cary
Institute of Ecosystem Studies, Environmental Monitoring Program are
encouraged to contact Data Manager Vicky Kelly,
kellyv@caryinstitute.org.
Cary Institute
meteorology
meteorology
climate
climate
solar radiation
solar radiation
UV
UV
ultraviolet radiation
ultraviolet radiation
UVB
UVB
Timeframe The data in this file start 1 January 2000 and end 31
December 2018. Data collection is ongoing. Geographic location The
meteorological and solar radiation instruments are located in a flat,
open field in Millbrook, NY at an elevation of 128 m. GPS coordinates
are N41.785823 W073.741447. Intellectual Rights This information is
released under the Creative Commons license -
Attribution-NonCommercial - CC BY- NC
(https://creativecommons.org/licenses/by/4.0/).
This information is released under the Creative Commons license -
Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/).
The consumer of these data (
Data User
herein) is
required to cite it appropriately in any publication that results from
its use. The Data User should realize that these data may be actively
used by others for ongoing research and that coordination may be
necessary to prevent duplicate publication. The Data User is urged to
contact the authors of these data if any questions about methodology
or results occur. Where appropriate, the Data User is encouraged to
consider collaboration or co-authorship with the authors. The Data
User should realize that misinterpretation of data may occur if used
out of context of the original study. While substantial efforts are
made to ensure the accuracy of data and associated documentation,
complete accuracy of data sets cannot be guaranteed. All data are made
available
as is.
The Data User should be aware,
however, that data are updated periodically and it is the
responsibility of the Data User to check for new versions of the data.
The data authors and the repository where these data were obtained
shall not be liable for damages resulting from any use or
misinterpretation of the data. Thank you.
Millbrook NY
-73.741447
-73.741447
41.785823
41.785823
2000-01-01
2019-12-31
ongoing
Victoria
R
Kelly
Cary Institute of Ecosystem Studies
kellyv@caryinstitute.org
https://orcid.org/0000-0003-3418-9211
The instruments, their accuracy and our recommendation for the number
of significant figures to use:
Please note that significant figures may be reported beyond the
accuracy of the instruments. Data are reported in this manner to
maintain the capability of backing out calculations from the raw
measurements. Instrument notes including calibration, malfunctions,
repairs and anecdotal information is available upon request. The
instruments, their accuracy and our recommendation for the number of
significant figures to use are:
Ultraviolet Radiation, March 1999 - present, Yankee Environmental
Systems, Inc. Model UVB-1, sensitivity + 1.97 watt/m-2 / volt of total
UV-B irradiance, spectral response 280-320 nm, cosine response + 5%
for 0-60 degree solar zenith angle, recommended significant figs. 4.
Location of sensors: 2 m above a mowed grass surface (1988-July 2002),
2.5 m above mowed grass surface (July 2002-present).
METEOROLOGICAL DATA QUALITY ASSURANCE AND QUALITY CONTROL PARAMETERS
AND METHODS
The quality of meteorological and solar radiation data collected as
part of the Cary Institute Environmental Monitoring Program is assured
and controlled at several levels. Instruments are returned to
manufacturers for audits and calibration as recommended by the
manufacturer or as needed. If an instrument is known to have
malfunctioned or if it is not in place for any reason, data are either
removed from the database and replaced with missing values, or are
replaced with data from a known working instrument.
Data are checked for accuracy at several levels. Meteorological data
are collected using a Campbell Scientific datalogger. The datalogger
assigns out-of-range data a value of either 6999, 9999 or -9999. Data
are downloaded from the datalogger on a daily basis and imported into
a SAS database. The SAS program used to import data contains
range-checking steps. These steps produce a temporary dataset that put
out-of-range data and data that are beyond a reasonable range equal to
missing values. These data are then checked and missing values are
reviewed. At the end of each year, a line graph of raw data is
produced together with data from previous years to check for data
points that may be outliers. All outliers are checked and, if for any
reason the value is suspected to be unreal, the value is replaced with
a missing value code.
Instrument notes including calibration schedule, malfunctions and
repairs, new instrumentation, anecdotal information etc. can be made
available on request.
Cary UV Data.
Cary UV Data.
Cary_UV_Data.csv
295322838
3f271d2a5fe8ad2bae03efc4a0438129
1
\r\n
column
,
date
Date in MM/DD/YYYY format where MM is month number, DD is date number and YYYY is year
date
MM/DD/YYYY
blank
empty cell
hour_min
Hour in hour_minute format in Eastern Standard Time. Note that data are from the preceding hour. For example, data for hour 0100 are from midnight to 1:00 a.m EST.
float
Eastern Standard Time
real
0
2400
blank
empty cell
ave_uvb
Average Diffey UVB in milliWatts per meter squared
float
mW/m^2
real
-0.97
305.81
blank
empty cell
alt
Maximum sun altitude in radians.
float
radians
real
-1.04
1.04
blank
empty cell
da
Day angle in radians
float
radians
real
0
6.28
blank
empty cell
dec
Declination in radians
float
radians
real
-0.41
0.41
blank
empty cell
ha
Hour angle in radians
float
radians
real
-3.14
3.14
blank
empty cell
sza
Solar zenith angle in degrees
float
degrees
real
30.56
149.43
blank
empty cell
3277370