Data Package Metadata   View Summary

Meteorological data from towers (pre-Hugo) or rooftop (post Hugo) at El Verde

General Information
Data Package:
Local Identifier:knb-lter-luq.33.91
Title:Meteorological data from towers (pre-Hugo) or rooftop (post Hugo) at El Verde
Alternate Identifier:DOI PLACE HOLDER
Abstract:

The meteorological sensors were installed above the flat concrete roof of El Verde Field Station (elevation: 350 m asl). The building is in an approx. 0.3 ha clearing in a forest approx. 20 m tall. Data were processed and temporarily stored in a Campbell 21X data logger on-site. The station was initiated after the September 1989 hurricane. As this station was installed 3 meters above a concrete rooftop in a forest clearing, dry air temperatures during daylight hours are higher than those that would be measured in the adjacent forest. The USGS maintains a nearby (100 m away) station on a 20 m tower (since 1992). An additional station for temperature and humidity measurements in the forest understory was added in 1997. Additional measurements of daily rainfall and maximum and minimum air temperatures for this site since 1975 exist on separate files.

Publication Date:2010-03-22
Language:English

Time Period
Begin:
1995-06-11
End:
2000-12-12

People and Organizations
Contact:Ramirez, Alonso (University of Puerto Rico, Rio Piedras Campus) [  email ]
Creator:Ramirez, Alonso (University of Puerto Rico, Rio Piedras Campus)
Associate:Melendez-Colom, Eda (University of Puerto Rico, Rio Piedras Campus, data manager)
Associate:Schaefer, Douglas Allen 
Associate:Thompson, Jill 

Data Entities
Data Table Name:
Summary of the available daily data files
Description:
Summary of the available daily data files
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/33/91/fb9c1b83ac047c52e0d2e8a82d492373
Name:Summary of the available daily data files
Description:Summary of the available daily data files
Number of Records:2012
Number of Columns:28

Time Period
Begin:
1995-06-11
End:
2000-12-12

Table Structure
Object Name:EVFSMetdailyDataAllYears.csv
Size:185425
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 Year of measurement or observationJulian day of measurementDate of observation or monitoringRainfallmax wind speedtime max wind speedmax temperaturetime max temperaturemax relative humiditytime max relative humiditymin wind speedtime min wind speedmin temperaturetime min temperaturemin relative humiditytime min relative humiditymean wind speedWind vector speed and directionWind direction standard deviationSigma thetaWind rose 1-45 octantWind rose 46-90 octantWind rose 91-135 octantWind rose 136-180 octantWind rose 181-225 octantWind rose 226-270 octantWind rose 271-315 octantWind rose 316-360 octant
Column Name:YEAR  
JULIAN  
DATE  
RAINFALL (MM)  
Max_W_S  
tmax_wsp  
Max_Temp  
tmx_temp  
mxrha  
Time_Mxrh  
Min_W_S  
Time_MnWS  
Min_Temp  
tmin_temp  
mnrha  
Time_Mnrh  
Wind_S  
WINVECTOR_M-SEC  
SDWINDDIR  
SIGTHETA  
WINDROSE1-45(M_S)  
WINDROSE46-90(M_S)  
WINDROSE91-135(M_S)  
WINDROSE136-180(M_S)  
WINDROSE181-225(M_S)  
WINDROSE226-270(M_S)  
WINDROSE271-315(M_S)  
WINDROSE316-360(M_S)  
Definition:Four digit number of the year of measurement or observationDay of measurement expressed in integers from 1 to 366. (Julian date at site if noted.)Date in mm/dd/yyyy format when observations or monitoring were done.Rate of liquid water precipitation, measured by a tipping bucket gauge. data shown are generated by taking missing day and next collection, dividing by number of days in collection. Summing the recorded values over a time period gives total rain. Values divided by the length of the recording interval gives the rainfall intensity (i.e., mm/hr).Maximum daily wind speedTime of Maximum daily wind speed (hhmm)Maximum daily temperature in CentigradesTime of Maximum daily temperature (hhmm)Maximum daily relative humidity (percent)Time of Maximum daily relative humidity (hhmm)Minimum daily wind speedTime of Minimum wind speed (hhmm)Minimum daily temperature in CentigradesTime of Minimum daily temperature (hhmm)Minimium Relative humidity (percent)Time of Minimum daily relative humidity ( hhmm)Mean daily wind speedSum of all wind vectors in eight bins for the measurement intervalWind direction standard deviation calculated from the wind vectors measured approx. every 10 sec during the sampling intervalSigma theta is the standard deviation of the wind vector during the measurement interval. It is a measure of turbulence in the wind field and is used in atmospheric deposition models as a measure of the intrusion of turbulent eddied into the plant canopy.Wind rose 1-45 octantWind rose 46-90 octantWind rose 91-135 octantWind rose 136-180 octantWind rose 181-225 octantWind rose 226-270 octantWind rose 271-315 octantWind rose 316-360 octant
Storage Type:string  
string  
      string  
  string  
  string  
  string  
  string  
  string  
                       
Measurement Type:nominalnominalratioratiorationominalrationominalrationominalrationominalrationominalrationominalratioratioratioratioratioratioratioratioratioratioratioratio
Measurement Values Domain:
DefinitionFour digit number of the year of measurement or observation
DefinitionDay of measurement expressed in integers from 1 to 366. (Julian date at site if noted.)
UnitdateTime
Typereal
Unitmillimeters
Precision0.1
Typereal
UnitmetersPerSecond
Typereal
DefinitionTime of Maximum daily wind speed (hhmm)
Unitcelsius
Typereal
DefinitionTime of Maximum daily temperature (hhmm)
Unitdimensionless
Typereal
DefinitionTime of Maximum daily relative humidity (hhmm)
UnitmetersPerSecond
Typereal
DefinitionTime of Minimum wind speed (hhmm)
Unitcelsius
Typereal
DefinitionTime of Minimum daily temperature (hhmm)
Unitdimensionless
Typereal
DefinitionTime of Minimum daily relative humidity ( hhmm)
UnitmetersPerSecond
Typereal
UnitmeterperSecond
Precision0.01
Typereal
Min
Max
Unitdegree
Precision1
Typereal
Unitdegree
Precision0.1
Typereal
Min100 
Max
UnitmeterperSecond
Precision0.0001
Typereal
Min
Max30 
UnitmeterperSecond
Precision0.0001
Typereal
UnitmeterperSecond
Precision0.0001
Typereal
UnitmeterperSecond
Precision0.0001
Typereal
UnitmeterperSecond
Precision0.0001
Typereal
Min
Max30 
UnitmeterperSecond
Precision0.0001
Typereal
Min
Max30 
UnitmeterperSecond
Precision0.0001
Typereal
Min
Max30 
UnitmeterperSecond
Precision0.0001
Typereal
Min
Max30 
Missing Value Code:        
Codeblank
ExplMissing Value
 
Codeblank
ExplMissing Value
 
Codeblank
ExplMissing Value
 
Codeblank
ExplMissing Value
 
Codeblank
ExplMissing Value
 
Codeblank
ExplMissing Value
 
Codeblank
ExplMissing Value
                     
Accuracy Report:                                                        
Accuracy Assessment:                                                        
Coverage:                                                        
Methods:                                                        

Data Package Usage Rights

Data Policies

LTER Network Data Access Policy, Data Access Requirements, and General Data Use Agreement
approved by the LTER Coordinating Committee April 6, 2005

Long Term Ecological Research Network Data Access Policy

The LTER data policy includes three specific sections designed to express shared network policies regarding the release of LTER data products, user registration for accessing data, and the licensing agreements specifying the conditions for data use.

LTER Network Data Release Policy

Data and information derived from publicly funded research in the U.S. LTER Network, totally or partially from LTER funds from NSF, Institutional Cost-Share, or Partner Agency or Institution where a formal memorandum of understanding with LTER has been established, are made available online with as few restrictions as possible, on a nondiscriminatory basis. LTER Network scientists should make every effort to release data in a timely fashion and with attention to accurate and complete metadata.

Data[current-user:created]

There are two data types:

Type I – data are to be released to the general public according to the terms of the general data use agreement (see Section 3 below) within 2 years from collection and no later than the publication of the main findings from the dataset and,

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Metadata documenting archived/online data sets of all types listed above will be made available when, or before, the dataset itself is released according to the terms above.
All metadata will be publicly available regardless of any restrictions on access to the data.
All metadata will follow LTER recommended standards and will minimally contain adequate information on proper citation, access, contact information, and discovery. Complete information including methods, structure, semantics, and quality control/assurance is expected for most datasets and is strongly encouraged.
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The access to all LTER data is subject to requirements set forth by this policy document to enable data providers to track usage, evaluate its impact in the community, and confirm users' acceptance of the terms of acceptable use. These requirements are standardized across the LTER Network to provide contractual exchange of data between Site Data Providers, Network Data Providers, and Data Users that can be encoded into electronic form and exchanged between computers. This will allow direct access to data via a common portal once these requirements have been fulfilled. The following information may be required directly or by proxy prior to the transference of any data object:

Registration

1. Name

2. Affiliation

3. Email Address

4. Full Contact Information

Acceptance of the General Public Use Agreement or Restricted Data Use Agreement, as applicable.
A Statement of Intended Use that is compliant with the above agreements. Such statements may be made submitted explicitly or made implicitly via the data access portal interface.

General Data Use Agreement

LUQ  data and metadata is released under public domain:  CC BY – Attribution.

Conditions of Use

The consumer of these data (“Data User” herein) has an ethical obligation 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 coauthorship 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.
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.[current-user:name]

Keywords

By Thesaurus:
Core Areasdisturbance
LTER Controlled Vocabularydisciplines, meteorology, measurements, atmospheric properties, climate, precipitation, rain, vapor pressure, humidity, relative humidity, weather, wind, wind direction, wind speed, physical properties, radiation, solar radiation, temperature, maximum temperature, minimum temperature, methods, analytical tools, models

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package
Description:

Air temperature measured by thermistor within a radiation shields)
Air temperature measured by thermistor surrounded by a water- saturated cotton wick, within a radiation shield;
Rate of liquid water preciptation, measured by a tipping bucket guage.
Relative humidity as measured by a capacitive sensor under ac excitation in a radiation shield.
Wind speed as measured by a rotating cup anemometer
Wind direction as
measured by a freely rotating wind vane oriented relative to geographic north.
Sigma theta is the standard deviation of the wind vector during the measurement interval
Wind rose as determined by the anemometer and wind vane. It is the fraction of the total wind vector during the measurement interval in each of the eight compass octants (WinRose1-45(degrees) = NE-E, WinRose46-90(degrees) = N-NE, WinRose91-135(degrees) = NW-N, WinRose136-180(degrees) = W-NW, WinRose181-225(degrees) = SW-W, WinRose226-270(degrees) = S-SW, WinRose271-315(degrees) = SE-S, WinRose316-360(degrees) = E-SE). The sum of all eight values equals the wind speed during the measurement interval.

Instrument(s):<p>Campbell 21X data logger</p>

People and Organizations

Creators:
Individual: Alonso Ramirez
Organization:University of Puerto Rico, Rio Piedras Campus
Address:
North Carolina State University,
Raleigh, NC 27695 US
Email Address:
aramirez@ramirezlab.net
Web Address:
https://twitter.com/AlonsoRamirezU
Contacts:
Individual: Alonso Ramirez
Organization:University of Puerto Rico, Rio Piedras Campus
Address:
North Carolina State University,
Raleigh, NC 27695 US
Email Address:
aramirez@ramirezlab.net
Web Address:
https://twitter.com/AlonsoRamirezU
Associated Parties:
Individual: Eda Melendez-Colom
Organization:University of Puerto Rico, Rio Piedras Campus
Address:
University of Puerto Rico at Rio Piedras, Ponce de Leon Ave.,
San Juan, PR 00931 US
Phone:
(787) 764-0000 (voice)
Email Address:
edacorreo@yahoo.com
Role:data manager
Individual: Douglas Allen Schaefer
Address:
88 Xuefu Road,
Kunming 650223, Yunnan, P.R., CN
Email Address:
dschaefer@lternet.edu
Web Address:
http://sourcedb.xtbg.cas.cn/zw/zjrck/fyjy/200908/t20090805_2327254.html
Role:associated researcher
Individual: Jill Thompson
Address:
Centre for Ecology & Hydrology Bush Estate EH26 0QB Midlothian, Penicuik Scotland,
Midlothian, Penicuik Scotland, GB
Email Address:
jiom@ceh.ac.uk
Role:associated researcher

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period
Begin:
1995-06-11
End:
2000-12-12
Sampling Site: 
Description:Above the flat concrete roof of El Verde Field Station (elevation: 350 m asl). The building is in an approx. 0.3 ha clearing in a forest approx. 20 m tallGoogle Map Location Description: Puerto Rico 186 El Yunque National Forest, Rio Grande, Río Grande 00745, Puerto Rico 198 m NW
Site Coordinates:
Longitude (degree): -65.8199Latitude (degree): 18.3212
Altitude (meter):350

Temporal, Geographic and/or Taxonomic information that applies to Data Table: Summary of the available daily data files


Time Period
Begin:
1995-06-11
End:
2000-12-12

Project

Other Metadata

Additional Metadata

additionalMetadata
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