LUQ LTER DATA SETS DOCUMENTATION FORM
ON-LINE VERSION
A DATA SET is a series of observations collected by the same methodology. Each data set should have documentation sufficient for someone unfamiliar with the research to replicate the study. Data sets may be broken into subsets (data files) that are discrete in space and time, in that order. The documentation for a data set should include all spatial and temporal subdivisions of the data.
(Data, Abstract, Methods, Variables)
NOTES:
PERSON(S) COMPLETING THIS FORM: E-MAIL ADDRESS:
|
Douglas Schaefer |
|
|
Eda C. Melendez-Colom |
DATA SET IDENTIFIER: USDC NOAA's National Climatic Data Center (NCDC) daily precipitation
PROJECT TITLE: Meteorology - Puerto Rico (USDC - LTER)
PROJECT DESCRIPTION: During LUQ LTER 1 (from 1988 to 1994) several meteorological data sets where obtained from other agencies for comparison. In 1993, historical daily precipitation and temperature data were obtained from the United States Department of Commerce NOAA NCDC from 5 stations, four of which are located at the East and South of the El Yunque Mountain (Fajardo, Río Blanco Lower and Upper, Pico del Este), and another at the North West (Río Grande). Historical streamfall data from the USGS were also obtained, but not summarized. These data can be obtained from the Puerto Rico USGS Web site at http://waterdata.usgs.gov/nwis.
Monthly sums of precipitation (P, in cm) and monthly averages (T, in oF) of the maximum and minimum air temperatures from NOAA NCDC were calculated and became part of the LUQ LTER data sets. Data are summarized through July 1992. Non-LUQ LTER users should obtain the daily data from this agency http://www.ncdc.noaa.gov).
LTER CORE AREAS: (Annotate all that apply)
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Primary Productivity |
LEF LTER 1 RESEARCH TOPIC: (Annotate all that apply)
|
Environmental Monitoring |
We define a data file as a component of a data set. A data set can have
only one data file or more. Basically, different data files have different data
structures or format.
DATA SET FILES (SUBSETS):
| NOTE: For recent data visit the National Climatic Data Center web site at: http://www.ncdc.noaa.gov/oa/ncdc.html | |||||
|
Data File No. |
Data File Identifier |
On-Line Filename |
Starting Date |
Periodicity of sample |
End Period |
| 1 | Fajardo | ppt_faj.txt | January 1, 1931 | daily | 7/31/92 |
| 2 | Pico del Este | ppt_pico.txt | January 1, 1931 | daily | 7/31/92 |
| 3 | Rio Blanco Lower | ppt_rbl.txt | January 1, 1931 | daily | 7/31/92 |
| 4 | Rio Blanco Upper | ppt_rbu.txt | January 1, 1931 | daily | 7/31/92 |
| 5 | Rio Grande El Verde | ppt_rgv.txt | January 1, 1931 | daily | 7/31/92 |
RESEARCH LOCATION: Fajardo (663657), Pico del Este (666992), Rio Blanco Lower (668144), Rio Blanco Upper (668145), Rio Grande El Verde (668245). For more details see Table 1 in "Abstract".
INVESTIGATORS:
PRINCIPAL INVESTIGATORS E-MAIL address
|
Douglas Schaefer |
OTHER RESEARCHERS E-MAIL address
|
|
CONTACT PERSONS E-MAIL address Phone Number (Include area code)
|
Eda Meléndez |
(787)764-0000 Ext.4943 |
SOURCE OF FUNDING (SPONSOR): NSF-LTER
DATA SET ABSTRACT: Daily precipitation,
maximum, and minimum air temperature at five stations in or near the LEF have
been compiled by the National Climate Data Center. Here I present monthly
sums of precipitation (P, in cm) and monthly averages (T, in oF) of the maximum
and minimum air temperatures. Data are summarized through July 1992 and additional
data will be added when it becomes available. Station details are as
follows:
Table 1. Station location and elevation (NOTE: For recent data visit the National Climatic Data Center web site at: http://www.ncdc.noaa.gov/oa/ncdc.html)
| Name of Location | Longitude | Latitude | Elevation (in meters) |
Period Covered |
Type of record
(Precipitation or Temperature) |
|||
|---|---|---|---|---|---|---|---|---|
| Pico del Este | 65° 45' | 18° 15' | 1051 | 1969-1992 | P,T | |||
| Rio Grande | 65° 49' | 18° 21' | 107 | 1956- 1984 | P | |||
| Rio Blanco Upper | 65°47' | 18° 16' | 439 | 1955-1974 | P | |||
| Rio Blanco Lower | 65° 47' | 18° 14' | 35 | 1955-1992 | P | |||
| Fajardo | 65° 39' | 18° 20' | 12 | 1931- 1992 |
P,T |
|||
DATA SET METHODS: See NOAA NCDC Web site at http://www.ncdc.noaa.gov
REFERENCES: http://www.ncdc.noaa.gov
CROSS-REFERENCES (other data sets related to this one): LTERDBAS 70: USDC NOAA's National Climatic Data Center (NCDC) daily precipitation ; LTERDBAS 71: USDC NOAA's National Climatic Data Center (NCDC) daily maximum temperature; LTERDBAS 72: USDC NOAA's National Climatic Data Center (NCDC) daily minimum temperature;
SAMPLE LOCATION: N/A
STORAGE SITES: Terrestrial Ecology Division, Data Mngr.'s Cabinet DM333-01, Drawer #4, on floppy
INVESTIGATOR'S ASSIGNED KEYWORDS: Weather, climate, meterology, meterological, monitoring, modeling
LEF LTER OFFICIAL KEYWORDS (See
table): EAST PEAK, Q RIO BLANCO, RIO GRANDE, OTHER PLOT, RIVER,
CLIMATE, OTHER PUBLICATION FORMAT
PUBLICATIONS: http://www.ncdc.noaa.gov
DISSEMINATION: UNRESTRICTED
REASONS TO RESTRICT DATA IN THIS DATA SET BEYOND ITS TWO YEAR POLICY PERIOD*:
*WILL HAVE TO BE APPROVED BY LTER PRINCIPAL INVESTIGATORS: J. ZIMMERMAN, A. LUGO , D.J. LODGE
SITES DESCRIPTIONS:
Geographical positional system (GPS) Coordinates for each location: (NOTE: For recent data visit the National Climatic Data Center web site at: http://www.ncdc.noaa.gov/oa/ncdc.html)
|
location |
Latitude |
Longitude |
|
|---|---|---|---|
| Pico del Este | 18° 15' | 65° 45' | |
| Rio Grande | 18° 21' | 65° 49' | |
| Rio Blanco Upper | 18° 16' | 65°47' | |
| Rio Blanco Lower | 18° 14' | 65° 47' | |
| Fajardo | 18° 20' | 65° 39' | |
|
FILE NAME OR #ABOVE (all in which the variable appears) |
1 | 2 | 3 |
|
ABBREVIATION (as it appears on the data file) |
YEAR | MONTH | CM |
|
NAME OF VARIABLE |
Year of measurement | Month of measurement | Monthly precipitation in centimeters |
|
DEFINITION OF VARIABLE |
A four digit number representing the year when the measurements were taken | A 1-2 digit number representing the month when the measurements were taken | The sum of all daily precipitation values for a specific month/year |
|
UNIT |
N/A | N/A | centimeters |
|
PRECISION |
N/A | N/A | ± .0001 |
|
RANGE OR LIST OF VALUES |
1931, ..., 1992 | 1,..., 12 | |
|
DATA TYPE |
integer | integer |
Decimal |
|
MISSING DATA CODES |
record missing | record missing |
record missing, or blank |
COMPUTATIONAL METHODS:
| Variable Name | Formula |
|
Monthly precipitation in centimeters |
SUM(PPT1,...PPTn) where n = {28, 29, 30, 31} of the same year |
sObservations: Monthly summaries were derrived from the
United States Department of Commerce NOAA NCDC' daily data. Non-LTER users
should obtain the daily data from this agency http://www.ncdc.noaa.gov).
FOR DATA MANAGER USE ONLY
DATE OF LAST REVIEW: May 5, 2005
DATE OF LAST ENTRY:
STAGE OF DATA SET MANAGEMENT (dates):
RECEIVED: September 19, 1996
CATALOGUED: 1996
ON-LINE: May 2, 1997
REVIEWED BY RESEARCHER: September 19, 1996
FILING MEDIA:
NAME OF DOCUMENTATION FILE: LTERDB70.FM*
NAME OF DATA FILE: ppt_AAAA.txt where AAA = {faj, pico, rbl, rbu, rgv}
NAME OF ON - LINE CATALOG: LTERDBAS
RECORD #: 70
DOCUMENT TYPE: Data set (magnetic media)
PRIORITY TO BE ENTERED: N/A
Rev. date of this form: 12 March 2002