Data Package Metadata View Summary

Raw neutron counts from soil water content probes at 15 NPP study sites at the Jornada Basin LTER, 1989-ongoing

General Information

Data Package:
Local Identifier:	knb-lter-jrn.210013001.68
Title:	Raw neutron counts from soil water content probes at 15 NPP study sites at the Jornada Basin LTER, 1989-ongoing
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	This data package contains raw neutron count data for monthly soil water probe measurements made at 15 net primary production (NPP) study locations on Jornada Experimental Range (JER) and Chihuahuan Desert Rangeland Research Center (CDRRC) lands. Once a month, soil water content measurements are made at 10 depths (where possible) at each of 10 access tubes at each of the 15 NPP sites using a neutron probe (Campbell Model 503DR Hydroprobe). This dataset consists of the count of thermalized neutrons at 30 cm depth intervals to a maximum depth of 300 cm. These counts are subsequently converted to volumetric water content as provided in EDI packageID knb-lter-jrn.210013002. The sites represent the 5 dominant vegetation types in the Jornada Basin with 3 sites of each type representing the range of low, medium, and high biomass for the dominant vgetation type at that site. These vegetation habitats consist of 3 shrub (creosotebush, mesquite dune, and tarbush) and 2 grass (upland grassland and playa). This data collection is ongoing with new data collected monthly.
Publication Date:	2019-09-09

Time Period

Begin:

1989-07-05

End:

2019-05-03

People and Organizations
Contact:	Manager, Data (Jornada Basin LTER) [ email ]
Contact:	Vivoni, Enrique (Arizona State University)
Contact:	Anderson, John (Jornada Basin LTER)
Creator:	Virginia, Ross (Dartmouth College)
Creator:	Duniway, Mike (USGS)
Creator:	Vivoni, Enrique (Arizona State University)

Data Entities
Data Table Name:	Raw neutron counts from probes at 15 NPP sites
Description:	Raw neutron counts from probes at 15 NPP sites
Other Name:	Hydroprobe sampling and processing protocol
Description:	Hydroprobe sampling and processing protocol
Other Name:	Neutron probe measurement history text file
Description:	Neutron probe measurement history text file

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210013001/68/2c68396ed455bf58fdc4f9229a3b5de9
Name:	Raw neutron counts from probes at 15 NPP sites
Description:	Raw neutron counts from probes at 15 NPP sites
Number of Records:	54589
Number of Columns:	14

Table Structure

Object Name:

JRNStudy013_npp_soil_water_content_raw.csv

Size:

3678603 bytes

Authentication:

f5f87e768e2b911d0908405c85ee934b Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Column Name:

Date

SerialNumber

CAL

M10

Definition:

Date of data collection

Serial number (last 4 digits of the Hydraprobe serial number)

Access tube identification number [XXXX: First 2 digits identify zone and NPP site: 01=C GRAV, 02=C SAND, 03=C CALI, 04=G SUMM, 05=G BASN, 06=G IBPE, 07=P SMAL, 08=P COLL, 09=P TOBO, 10=T TAYL, 11=T EAST, 12=T WEST, 13=M NORT, 14=M RABB, 15=M WELL);<ca>Last 2 digits identify the 10 tubes at each NPP site (1 thru 10: Odd # = between shrubs Even# = under shrubs)]

Calibration number (autogenerated)

Count reading (# of thermalized neutrons) at 30 cm

Count reading (# of thermalized neutrons) at 60 cm

Count reading (# of thermalized neutrons) at 90 cm

Count reading (# of thermalized neutrons) at 120 cm

Count reading (# of thermalized neutrons) at 150 cm

Count reading (# of thermalized neutrons) at 180 cm

Count reading (# of thermalized neutrons) at 210 cm

Count reading (# of thermalized neutrons) at 240 cm

Count reading (# of thermalized neutrons) at 270 cm

Count reading (# of thermalized neutrons) at 300 cm

Storage Type:

date

string

float

Measurement Type:

dateTime

nominal

ratio

Measurement Values Domain:

Format	YYYY-MM-DD
Precision

Definition

Serial number (last 4 digits of the Hydraprobe serial number)

Definition

Calibration number (autogenerated)

Unit	number
Type	natural
Min	426
Max	54811

Unit	number
Type	natural
Min	1349
Max	63199

Unit	number
Type	natural
Min	1519
Max	53451

Unit	number
Type	natural
Min	1002
Max	61868

Unit	number
Type	natural
Min	2481
Max	56895

Unit	number
Type	natural
Min	96
Max	53207

Unit	number
Type	natural
Min	1460
Max	63337

Unit	number
Type	natural
Min	2697
Max	60803

Unit	number
Type	natural
Min	1886
Max	55986

Unit	number
Type	natural
Min	2653
Max	51712

Missing Value Code:

Code	0
Expl	no reading

Code	0
Expl	no reading

Code	0
Expl	no reading

Code	0
Expl	no reading

Code	0
Expl	no reading

Code	0
Expl	no reading

Code	0
Expl	no reading

Code	0
Expl	no reading

Code	0
Expl	no reading

Code	0
Expl	no reading

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

Hydroprobe sampling and processing protocol

Entity Type:

unknown

Description:

Hydroprobe sampling and processing protocol

Physical Structure Description:

Object Name:

standalone_hydroprobe_protocol.pdf

Size:

606692 bytes

Authentication:

ffcbf3bde97da67226bc87269e483327 Calculated By MD5

Externally Defined Format:

Format Name:

unknown

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210013001/68/5b457ca477a42bfdad04b19da76a29f7

Non-Categorized Data Resource

Name:

Neutron probe measurement history text file

Entity Type:

unknown

Description:

Neutron probe measurement history text file

Physical Structure Description:

Object Name:

probe_his.txt

Size:

239157 bytes

Authentication:

4e189d7537bced256b66b82200aded9e Calculated By MD5

Externally Defined Format:

Format Name:

unknown

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210013001/68/3c0f522e9be53593e490c9e219222d0e

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required 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 co-authorship 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.

Keywords

By Thesaurus:
JRN Dataset Keywords	Hydrology, Climate, Soils, and Atmosphere, long-term
Jornada Place Names	C-CALI, C-GRAV, C-SAND, G-BASN, G-SAND, G-SUMM, M-NORT, M-RABB, M-WELL, P-COLL, P-SMAL, P-TOBO, T-EAST, T-TAYL, T-WEST, NPP locations
Jornada Study Names	NPP, study 013
LTER Core Area	Inorganic Nutrients, Primary Production
LTER Controlled Vocabulary	soil, soil water content, soil moisture, soil water, net primary production, neutron probe

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:

See the pdf document ("standalone_hydraprobe_protocol.pdf") attached to this package for detailed information on the methods for this study. These methods are summarized below.

Monthly soil water content measurements measurements are made at 10 depths (where possible) at each of 10 probe access tubes at each of the 15 plant NPP sites. The 10 probe access tubes at each site are paired on each of the four sides and in the middle of the 70m x 70m area used for long term plant NPP measurements. At the time of access tube installation (aluminum 2 inch diameter irrigation pipe), the pairing consisted of an access tube inserted vertically into the ground midway under a shrub canopy of the dominant species and one between shrubs. For grass dominated habitats, an access tube was installed in the middle of the dominant perennial grass with the second in the bare area between grass patches. Changes in perennial plant cover through mortality or establishment may have changed this relationship for some access tubes over the years.

Measurements are taken at 30cm, 60cm, 90cm, 120cm, 150cm, 180cm, 210cm, 240cm, 270cm, and 300cm when possible or to the greatest depth to which the associated access tube could be installed before hitting impenetrable petrocalcic (caliche). If fewer depths were measured, the missing depths have a zero in the raw data set of count values. The occurrence of any other zero is a missed depth reading. The hydroprobe currently used is Hydroprobe Model CPN503DR (Campbell Pacific Nuclear, Pacheco, CA) with data logger. This probe has a 50 mCi 241 Am-Be source and a 3He detector. Neutrons encountering hydrogen become thermalized. The detector totals the returning thermalized neutrons over a 16 second sample time which is the raw count value displayed. The raw count value is then substituted into the proper regression equation to calculate cubic centimeters of water per cubic centimeter of soil. See "probe_his.txt" file for probe history; e.g., problems associated with measurements.

People and Organizations

Creators:

Individual:	Ross Virginia
Organization:	Dartmouth College
Id:	https://orcid.org/0000-0002-0890-0981

Individual:	Mike Duniway
Organization:	USGS
Id:	https://orcid.org/0000-0002-9643-2785

Individual:	Enrique Vivoni
Organization:	Arizona State University
Id:	https://orcid.org/0000-0002-2659-9459

Contacts:

Individual:

Data Manager

Organization:

Jornada Basin LTER

Email Address:

datamanager.jrn.lter@gmail.com

Individual:	Enrique Vivoni
Organization:	Arizona State University
Id:	https://orcid.org/0000-0002-2659-9459

Individual:	John Anderson
Organization:	Jornada Basin LTER
Id:	https://orcid.org/0000-0002-6417-8022

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

1989-07-05

End:

2019-05-03

Geographic Region:

Description:

NPP (and soil water) is measured at 15 sites, spanning 5 vegetation community types in the Jornada Basin. This bounding box includes all 15 sites. More precise geographic coordinates for this study may be requested from the JRN LTER Data Manager.

Bounding Coordinates:

Northern:	32.669	Southern:	32.488
Western:	-106.865	Eastern:	-106.713

Project

Parent Project Information:

Title:

Jornada Basin LTER

Personnel:

Individual:	Enrique Vivoni
Organization:	Arizona State University
Id:	https://orcid.org/0000-0002-2659-9459
Role:	Principal Investigator

Funding:

NSF: DEB-1832194

Maintenance

Maintenance:

Description:	This study is ongoing. Sampling occurs once a month at each probe at each NPP site.
Frequency:

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'count'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |  \___attribute 'name' = 'count'
        |     |     |     |  \___attribute 'parentSI' = 'count'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'number of thermalized neutrons'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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Data Package Metadata View Summary

Raw neutron counts from soil water content probes at 15 NPP study sites at the Jornada Basin LTER, 1989-ongoing

Data Entities

Data Table

Non-Categorized Data Resource

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

Recently Added

Recently Updated

Data Package Metadata View Summary

Raw neutron counts from soil water content probes at 15 NPP study sites at the Jornada Basin LTER, 1989-ongoing

+/- Data Entities

Data Table

Non-Categorized Data Resource

Non-Categorized Data Resource

+/- Data Package Usage Rights

+/- Keywords

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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:

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Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata