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Derived SPEI and vapor pressure deficit for 15 NPP study sites on the Jornada Basin, 2013-ongoing

General Information
Data Package:
Local Identifier:knb-lter-jrn.104.2
Title:Derived SPEI and vapor pressure deficit for 15 NPP study sites on the Jornada Basin, 2013-ongoing
Alternate Identifier:DOI PLACE HOLDER
Abstract:
Standardized Precipitation Evapotranspiration Index (SPEI) and minimum, maximum, and average vapor pressure deficit (VPD) were calculated from meteorological data (temperature, precipitation, and relative humidity) from the 15 net primary production (NPP) study locations on the Jornada Experimental Range (JER) and the Chihuahuan Desert Rangeland Research Center (CDRRC) lands in southern New Mexico, U.S.A.
Publication Date:2022-08-19
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
2013-11-30
End:
2022-05-31

People and Organizations
Contact:Jornada Basin LTER - Information Manager [  email ]
Creator:Hernandez , Brianda  (Environmental Data Initiative , EDI Fellow )
Creator:Maurer, Greg E. (Jornada Basin LTER/New Mexico State University)

Data Entities
Data Table Name:
npp_derived_spei_VPD_2013_ongoing
Description:
CSV table with derived SPEI and vapor pressure deficit values for 15 NPP study sites
Other Name:
derived_monthly_climate_indices_15npp_sites
Description:
R script used to derive SPEI and calculate VPD from NPP meteorological datasets
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/104/2/2810768a59f08c0b95a6050c870fd08c
Name:npp_derived_spei_VPD_2013_ongoing
Description:CSV table with derived SPEI and vapor pressure deficit values for 15 NPP study sites
Number of Records:1513
Number of Columns:7

Table Structure
Object Name:npp_derived_spei_VPD_2013_ongoing.csv
Size:126978 byte
Authentication:a567dbec6233d0b94b11a72ba4e3199a Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 yearmonthsitenamespei12movpd_avgvpd_minvpd_max
Column Name:year  
month  
sitename  
spei12mo  
vpd_avg  
vpd_min  
vpd_max  
Definition:yearmonth name of NPP study site SPEI value Average vapor pressure deficit Minimum vapor pressure deficit Maximum vapor pressure deficit
Storage Type:float  
float  
string  
float  
float  
float  
float  
Measurement Type:ratiorationominalratioratioratioratio
Measurement Values Domain:
Unityear
Typeinteger
Unitmonth
Typeinteger
Definitionname of NPP study site
UnitDrought severity index
Typereal
Unitkilopascal
Typereal
Unitkilopascal
Typereal
Unitkilopascal
Typereal
Missing Value Code:    
CodeNA
Expl-9999
CodeNA
Expl-9999
CodeNA
Expl-9999
CodeNA
Expl-9999
CodeNA
Expl-9999
Accuracy Report:              
Accuracy Assessment:              
Coverage:              
Methods:              

Non-Categorized Data Resource

Name:derived_monthly_climate_indices_15npp_sites
Entity Type:R
Description:R script used to derive SPEI and calculate VPD from NPP meteorological datasets
Physical Structure Description:
Object Name:derived_monthly_climate_indices_15npp_sites.R
Size:6926 byte
Authentication:c49d57ea1137aa00c7ab859e2047bbe5 Calculated By MD5
Externally Defined Format:
Format Name:R
Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/104/2/05e7970363bb2e99603b3d45c1663386

Data Package Usage Rights

This data package is released to the "public domain" under Creative Commons CC0 1.0 "No Rights Reserved" (see: https://creativecommons.org/publicdomain/zero/1.0/). It is considered professional etiquette to provide attribution of the original work if this data package is shared in whole or by individual components. A generic citation is provided for this data package on the website https://portal.edirepository.org (herein "website") in the summary metadata page. Communication (and collaboration) with the creators of this data package is recommended to prevent duplicate research or publication. This data package (and its components) is made available "as is" and with no warranty of accuracy or fitness for use. The creators of this data package and the website shall not be liable for any damages resulting from misinterpretation or misuse of the data package or its components. Periodic updates of this data package may be available from the website. Thank you.

Keywords

By Thesaurus:
(No thesaurus)standardized precipitation evapotranspiration deficit , vapor pressure deficit
LTER Controlled Vocabularynet primary production
jornada_placenamesNPP locations, Jornada Basin LTER , C-SAND, G-BASN, G-IBPE, G-SUMM, M-NORT, M-RABB, M-WELL, P-COLL, P-SMAL, P-TOBO, T-EAST, T-TAYL, T-WEST, C-CALI, C-GRAV

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:
Data was downloaded from the 15 NPP study sites on the Jornada Experimental Range and the Chihuahuan Desert Rangeland Research Center and then combined into a larger dataset with precipitation, latitude, temperature, and relative humidity to derive SPEI and VPD. The 15 NPP datasets were assembled using the R script available as an entity in this metadata. Packages get_data.R and spei.r are required to successfully run the script. The package get_data.R is available on the Jornada-IM GitHub repository under climate_metrics and spei.r is available on Greg E. Maurer's GitHub Repository. Links are listed below. https://github.com/jornada-im/climate-metrics https://github.com/gremau/rclimtools ==================== Data Sources ========================= Title: Jornada Basin LTER: Wireless meteorological station at NPP X-XXXX site: Daily summary data: 2013-ongoing Local Identifiers and DOI(s): C-CALI: knb-lter-jrn.210437046.32 doi:10.6073/pasta/1a2b8dc5a3e5aa66122024be72ef54c7 C-GRAV: knb-lter-jrn.210437047.31 doi:10.6073/pasta/d42932fdcc3a04588be138cadb2ad0f2 C-SAND: knb-lter-jrn.210437048.31 doi:10.6073/pasta/a21ab472a7255c49da1a731eb96680e3 G-BASN: knb-lter-jrn.210437049.31 doi:10.6073/pasta/e9946b189079c1dfa1b8cda5c66865ef G-IBPE: knb-lter-jrn.210437050.29 doi:10.6073/pasta/bb68f346d95715bc9d554baf77d1a84e G-SUMM: knb-lter-jrn.210437051.28 doi:10.6073/pasta/fb2cb3621b95e821a6075e40572fa8ac M-NORT: knb-lter-jrn.210437052.30 doi:10.6073/pasta/91c39fc4cccafaf37e3586b43a3e6a05 M-WELL: knb-lter-jrn.210437054.30 doi:10.6073/pasta/fb2d9175af79d5e97044aa9a1d95cf21 M-RABB: knb-lter-jrn.210437053.30 doi:10.6073/pasta/50fedba87283b8d2bad259737c77cb25 P-COLL: knb-lter-jrn.210437055.31 doi:10.6073/pasta/e818f503ed16c1a1b0eea7b1e23ab5a8 P-SMALL: knb-lter-jrn.210437056.30 doi:10.6073/pasta/7b045b7468ce227854e3d3412977095f P-TOBO: knb-lter-jrn.210437057.30 doi:10.6073/pasta/f9458796a2c22521214edcb35ab126f2 T-EAST: knb-lter-jrn.210437058.30 doi:10.6073/pasta/751d6cf207f54380421f06f730166ef2 T-TAYL: knb-lter-jrn.210437059.30 doi:10.6073/pasta/3f4241e981d10c65ea8fcec785157dd5 T-WEST: knb-lter-jrn.210437060.30 doi:10.6073/pasta/9fc9917663dfef2e8dc0900a7e67d86d Creator: Anderson, John (JRN LTER, Research Site Manager) Contact: Data Manager(JRN-LTER Information Manager) ===========================================================
Description:
A 12-month Standardized Precipitation Evapotranspiration Index (SPEI) was derived using precipitation depths and calculated potential evapotranspiration (PET) using the Thornthwaite method, which requires average temperature and latitude. The SPEI package in R was used for this derivation and was created by Santiago Begueria, Borja Latorre, Fergus Reig, and Sergio M. Vicente Serrano. Certain SPEI values for a few sites were interpolated for up to five months during some time series even though the temperature values were missing. We believe it is based on the 12-month SPEI time scale since it is longer than the missing data. Missing data periods include the following sites and dates (YYYY-MM): G-BASN: 2015-03, 2015-04, 2015-05, 2015-06, 2015-07 G-SUMM: 2015-04, 2015-05, 2015-06, 2015-07 M-NORT: 2014-06, 2014-07, 2014-8, 2014-09 M-WELL: 2014-07, 2014-08, 2014-09, 2015-03, 2015-04, 2015-05, 2015-06, 2015-07, 2015-08 P-COLL: 2014-06, 2014-07, 2014-08, 2014-09, 2015-03, 2015-04, 2015-05, 2015-06, 2015-07 P-TOBO: 2015-03, 2015-04, 2015-05, 2015-06, 2015-07, 2015-08, 2015-09 T-EAST: 2014-06, 2014-07, 2014-08, 2015-03, 2015-04, 2015-05, 2015-06, 2015-07 T-TAYL: 2014-07, 2014-08, 2015-03, 2015-04, 2015-05, 2015-06, 2015-07 T-WEST: 2015-03, 2015-04, 2015-05, 2015-06, 2015-07 S.M. Vicente-Serrano, S. Beguería, J.I. López-Moreno. 2010. A Multi-scalar drought index sensitive to global warming: The Standardized Precipitation Evapotranspiration Index – SPEI. Journal of Climate 23: 1696, DOI: 10.1175/2009JCLI2909.1. http://sac.csic.es/spei/
Description:
Vapor pressure deficit was calculated by taking the difference between the actual vapor pressure from the saturated vapor pressure for the average, minimum, and maximum relative humidity to their respective temperatures. Vapor pressure deficit (vpd) = svp-avp Saturated vapor pressure (svp) = 0.6108 * exp(17.27 * T / (T + 237.3)) Actual Vapor Pressure (avp) = rh/100*svp where T is temperature and rh is relative humidity

People and Organizations

Publishers:
Organization:Environmental Data Initiative
Email Address:
info@edirepository.org
Web Address:
https://edirepository.org
Id:https://ror.org/0330j0z60
Creators:
Individual: Brianda Hernandez
Organization:Environmental Data Initiative
Position:EDI Fellow
Email Address:
bnhernandez90@outlook.com
Id:https://orcid.org/0000-0002-2701-4870
Individual: Greg E. Maurer
Organization:Jornada Basin LTER/New Mexico State University
Address:
P.O. Box 30003; MSC 3JER,
New Mexico State University ,
Las Cruces , NM 88003-8003 U.S.A
Email Address:
gmaurer@nmsu.edu
Id:https://orcid.org/0000-0002-3007-8058
Contacts:
Position:Jornada Basin LTER - Information Manager
Email Address:
jornada.data@nmsu.edu
Metadata Providers:
Organization:Jornada Basin LTER
Email Address:
jornada.data@nmsu.edu
Id:https://ror.org/05976ta47

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
2013-11-30
End:
2022-05-31
Geographic Region:
Description:15 NPP study sites located on the Jornada Basin
Bounding Coordinates:
Northern:  32.669Southern:  32.488
Western:  -106.865Eastern:  -106.713

Project

Parent Project Information:

Title:Jornada Basin LTER
Personnel:
Individual: Niall P Hanan
Organization:New Mexico State University
Position:Professor
Address:
Plant and Environmental Sciences Department ,
New Mexico State University ,
Las Cruces , NM 88003-8003 U.S.A
Email Address:
nhanan@nmsu.edu
Id:https://orcid.org/0000-0002-9130-5306
Role:Lead PI
Abstract:JRN LTER is part of a national network of long-term ecological research sites funded by the US National Science Foundation (NSF). The Jornada LTER program has been continuously funded since 1982 to develop general principles governing changes between grassland and shrubland ecosystems based on long-term data collected in the Chihuahuan Desert.
Additional Award Information:
Funder:National Science Foundation
Number:DEB 2025166
Title:Jornada Basin LTER VI

Maintenance

Maintenance:
Description:Derived SPEI and VPD will be recalculated and published as new NPP meteorology datasets are published. Updates to this dataset will occur at least annually
Frequency:annually
Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'year'
        |     |     |     |  \___attribute 'name' = 'year'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'year'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'month '
        |     |     |     |  \___attribute 'name' = 'month '
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'month'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'Drought severity index '
        |     |     |     |  \___attribute 'name' = 'Drought severity index '
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2022.08.10'
        |     |___text '\n    '
        |___text '\n  '

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