Data Package Metadata View Summary

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.104.3

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/104/3/2810768a59f08c0b95a6050c870fd08c
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:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

year

month

sitename

spei12mo

vpd_avg

vpd_min

vpd_max

Column Name:

year

month

sitename

spei12mo

vpd_avg

vpd_min

vpd_max

Definition:

year

month

name of NPP study site

SPEI value

Average vapor pressure deficit

Minimum vapor pressure deficit

Maximum vapor pressure deficit

Storage Type:

float

string

float

Measurement Type:

ratio

nominal

ratio

Measurement Values Domain:

Unit	year
Type	integer

Unit	month
Type	integer

Definition

name of NPP study site

Unit	Drought severity index
Type	real

Unit	kilopascal
Type	real

Unit	kilopascal
Type	real

Unit	kilopascal
Type	real

Missing Value Code:

Code	NA
Expl	-9999

Code	NA
Expl	-9999

Code	NA
Expl	-9999

Code	NA
Expl	-9999

Code	NA
Expl	-9999

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

derived_monthly_climate_indices_15npp_sites

Entity Type:

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:

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/104/3/05e7970363bb2e99603b3d45c1663386

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 Vocabulary	net primary production
jornada_placenames	NPP 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 C-GRAV: knb-lter-jrn.210437047.31 C-SAND: knb-lter-jrn.210437048.31 G-BASN: knb-lter-jrn.210437049.31 G-IBPE: knb-lter-jrn.210437050.29 G-SUMM: knb-lter-jrn.210437051.28 M-NORT: knb-lter-jrn.210437052.30 M-WELL: knb-lter-jrn.210437054.30 M-RABB: knb-lter-jrn.210437053.30 P-COLL: knb-lter-jrn.210437055.31 P-SMALL: knb-lter-jrn.210437056.30 P-TOBO: knb-lter-jrn.210437057.30 T-EAST: knb-lter-jrn.210437058.30 T-TAYL: knb-lter-jrn.210437059.30 T-WEST: knb-lter-jrn.210437060.30 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:	32.669	Southern:	32.488
Western:	-106.865	Eastern:	-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  '

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

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

Data Entities

Data Table

Non-Categorized Data Resource

Data Package Usage Rights

Keywords

Methods and Protocols

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

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

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

+/- Data Entities

Data Table

Non-Categorized Data Resource

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

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

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata

Additional Metadata