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:

• Add rows to tables or lines to paraghaphs as you need them for entering your data.
• Contact emelendez@lternet.edu, if you have any question.

PERSON(S) COMPLETING THIS FORM: E-MAIL ADDRESS:

DATA SET IDENTIFIER: USDC NOAA's National Climatic Data Center (NCDC) daily maximum temperature

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).  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/climateresearch.html)

LTER CORE AREAS: (Annotate all that apply)

Primary productivity

Inorganic Inputs

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 Monthly Average Maximum Temperature	temp_faj.txt	January 1931	monthly	July 1992
2	Pico del Este Monthly Average Maximum Temperature	temp_pico.txt	October 1969	monthly	June 1992

RESEARCH LOCATION: Fajardo (663657), Pico del Este (666992). For more details see Table 1.

INVESTIGATORS:

PRINCIPAL INVESTIGATORS E-MAIL address

Douglas Schaefer

DSchaef53@hotmail.com

OTHER RESEARCHERS E-MAIL address

CONTACT PERSONS E-MAIL address Phone Number (Include area code)

Eda Meléndez

emelend@ites.upr.edu

(787) 764-0000 ext: 4943

SOURCE OF FUNDING (SPONSOR): NSF-LTER

COMPUTATIONAL METHODS:

Variable Name	Formula
Minimum of daily values	MIN(temp1,...tempn) where n = {28, 29, 30, 31}
Maximum of daily values	MAX(temp1,...tempn) where n = {28, 29, 30, 31}

Observations: These 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).

Rev. date of this form: 11 March 2002