Weather data were collected by the National Weather Service in International Falls, Minnesota. International Falls is about 80 miles from the SNF, but the weather data are representative of the area. Total solar insolation measurements were made at Fall Lake Dam in Winton, Minnesota, by Prof. Donald Baker of the Department of Soil Science at the University of Minnesota, St. Paul. Insolation values were measured using a Yellow Springs solar cell calibrated against an Eppley Pyranometer.
NWS Daily Climatology Data: 1984 (SNF).
Weather data were collected by the National Weather Service in International Falls, Minnesota. International Falls is about 80 miles from the SNF, but the weather data are representative of the area. Total solar insolation measurements were made at Fall Lake Dam in Winton, Minnesota, by Prof. Donald Baker of the Department of Soil Science at the University of Minnesota, St. Paul. Insolation values were measured using a Yellow Springs solar cell calibrated against an Eppley Pyranometer.
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Daily temperature (minimum, maximum, average), precipitation, insolation.
Daily weather data for the years 1972 through 1990 are stored in a collection of data sets with each data set containing one year's data, plus a data set including the entire data collection. The data set names are in the form:
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Dr. Forrest G. Hall
NASA Goddard Space Flight Center
Dr. K. Fred Huemmrich
NASA Goddard Space Flight Center
Dr. Donald E. Strebel
Versar, Inc.
Dr. Scott J. Goetz
University of Maryland
Ms. Jamie E. Nickeson
NASA Goddard Space Flight Center
Ms. K. D. Woods
NASA Goddard Space Flight Center
Dr. Celeste Jarvis
NASA Headquarters
Biophysical, Morphological, Canopy Optical Property, and Productivity Data on the Superior National Forest.
Dr. Forrest G. Hall
NASA Goddard Space Flight Center
Fax: +1 (301) 614-6659
Telephone: +1 (301) 614-6695
E-mail: fghall@ltpmail.gsfc.nasa.gov
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Ground-based.
Meteorological Station.
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Daily temperature (minimum, maximum, average), precipitation, insolation.
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Weather data were collected by the National Weather Service in International Falls, Minnesota. International Falls is about 80 miles from the SNF, but the weather data are representative of the area.
This data set contains meteorological data collected during 1984.
Variable Name/ Long Name SAS Type Generic Type Description
1 location LOCATION $ 24 CHAR(20) "Location of Recording Station"
2 obs_datc OBS_DATE $ 12 DATE "The date of the observations, in the format (DD-MMM-YY) (eg. 01-jan-90)"
3 temp_min MIN_TEMP 8 NUMBER(6,1) "Daily minimum temperature (F)"
4 temp_max MAX_TEMP 8 NUMBER(6,1) "Daily maximum temperature (F)"
5 temp_avg AVG_TEMP 8 NUMBER(6,1) "Daily average temperature (F)"
6 precip PRECIP 8 NUMBER(7,2) "Precipitation: total daily water equivalent (inches)"
7 gdd GDD 8 NUMBER(5,0) "Growing (heating) degree days accumulated for that day calculated from the sine wave method. A base value of 40 degrees (F) was used."
8 t_solar TOTAL_SOLAR 8 NUMBER(5,1) "Total daily solar irradiance (Langleys) recorded by a Yellow- Springs solar cell at Winton, Minnesota"
9 rel_hum REL_HUM 8 NUMBER(6,1) "Relative humidity (%) as measured daily at 1400 local time"
location obs_datc temp_min temp_max temp_avg precip gdd t_solar rel_hum
"Fall Lake Dam, MN" "01-JAN-84" . . . . . 120.2 . "Fall Lake Dam, MN" "02-JAN-84" . . . . . 183.9 . "Fall Lake Dam, MN" "03-JAN-84" . . . . . 48.4 . "Fall Lake Dam, MN" "04-JAN-84" . . . . . 90.7 . "Fall Lake Dam, MN" "05-JAN-84" . . . . . 39 . "Fall Lake Dam, MN" "06-JAN-84" . . . . . 60.2 . "Fall Lake Dam, MN" "07-JAN-84" . . . . . 64.2 . "Fall Lake Dam, MN" "08-JAN-84" . . . . . 135.6 . "Fall Lake Dam, MN" "09-JAN-84" . . . . . 57.4 . "Fall Lake Dam, MN" "10-JAN-84" . . . . . 175.1 .
Footnote:
Data are sorted by observation date (obs_datc) and location (location). Key fields in each record are location and obs_datc.
Each data set consists of a single ASCII file containing climatology data for each location for an entire year, except in the case of "NWS Daily Climatology Data: 1972-1990" which contains the climatology data for the entire period 1972-1990.
A general description of data granularity as it applies to the IMS appears in the EOSDIS Glossary.
The data files associated with this data set consist of numeric and character fields of varying lengths aligned in columns. The first row of each data file contains the 8 character SAS variable name that links to the data format definition file. Character fields are enclosed in double quotes and numeric fields are listed without quotes.
Missing data values can be of two varieties:
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The Superior National Forest data were received from the Goddard Space Flight Center in three media:
Data from both electronic sources were input into SAS by ORNL DAAC data management staff and compared using computer code developed to process the SNF data. In many cases, the data values from both sources were found to be identical. In some cases, however, differences were identified and the providers of the data were consulted to resolve inconsistencies.
Additionally, some variable columns were available in one source, but not the other for various reasons. For example, some calculated variables/columns were provided in the ASCII files (reflecting the Tech Memo tables) that were not stored in the Oracle database for purposes of space conservation.
For similar reasons, coded values were used for many of the site and species identifier variables. A separate reference table was provided to link the coded variable with its definition (e.g., the SPECIES_REF file and the SITE_REF file).
The database produced by the ORNL DAAC is a hybrid product that is a composite of data and information extracted from all three source media. In data sets where coded variables were included, the code definition variables have been added to improve usability of the data set as a stand-alone product.
Therefore the ASCII files that are available through the ORNL DAAC on-line search and order systems are output from a data set that is a product of the essential core of numeric data provided by the data source (GSFC), augmented with additional descriptive information provided by GSFC and reorganized by the ORNL DAAC into a data structure consistent with other similar data sets maintained by the ORNL DAAC.
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None known at this revision.
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None.
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ORNL DAAC User Services
Oak Ridge National Laboratory
Telephone: (865) 241-3952
Fax: (865) 574-4665
E-mail: ornldaac@ornl.gov
ORNL Distributed Active Archive Center
Oak Ridge National Laboratory
Telephone: (865) 241-3952
Fax: (865) 574-4665
E-mail: ornldaac@ornl.gov
Users may place requests by telephone, electronic mail, or fax. Data are also available via the World Wide Web at http://daac.ornl.gov.
The Superior National Forest Data are available from the ORNL DAAC. Please contact the ORNL DAAC User Services Office for the most current information about these data.
Available via FTP or on CD-ROM.
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Contact the ORNL DAAC, Oak Ridge, Tennessee (see the Data Center Identification Section).
A general glossary is located at EOSDIS Glossary.
A general list of acronyms is available at http://cdiac.ornl.gov/pns/acronyms.html
October 17, 1996 (citation revised September 23, 2002)
February 4, 1997.
ORNL-SNF_MET_1984.
Please cite this data set as follows (citation revised September 23, 2002):
Hall, F. G., K. F. Huemmrich, D. E. Strebel, S. J. Goetz, J. E. Nickeson, and K. D. Woods. 1996. NWS Daily Climatology Data: 1984 (SNF). [National Weather Service Daily Climatology Data: 1984 (Superior National Forest)]. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/171.
Based on F. G. Hall, K. F. Huemmrich, D. E. Strebel, S. J. Goetz, J. E. Nickeson, and K. D. Woods, Biophysical, Morphological, Canopy Optical Property, and Productivity Data from the Superior National Forest, NASA Technical Memorandum 104568, National Aeronautics and Space Administration, Goddard Space Flight Center, Greenbelt, Maryland, U.S.A., 1992.