Data Package Metadata View Summary

Soil moisture along an elevation gradient at the Hubbard Brook Experimental Forest, 2010 - ongoing

General Information

Data Package:

Local Identifier:

knb-lter-hbr.137.8

Title:

Soil moisture along an elevation gradient at the Hubbard Brook Experimental Forest, 2010 - ongoing

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Soil temperature and soil moisture have been measured at multiple locations at the Hubbard Brook Experimental Forest (HBEF), as part of a study of the relationships between snow depth, soil freezing and nutrient cycling (http://www.ecostudies.org/people_sci_groffman_snow_summary.html). In October 2010, we established 6, 20 x 20-m plots (intensive plots) and 14 10 x 10-m plots (extensive plots) along an elevation gradient, with eight of the plots on north-facing slopes and twelve on south-facing slopes. Soil temperature and soil moisture were measured at hourly intervals on these plots beginning in November 2010. Six locations were discontinued in September 2012 (E04, E05, E06, E11-B, E13, and E14).

Previous versions of this dataset included both temperature and moisture. These data are now available as moisture(this dataset) and temperature (https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-hbr&identifier=315].

These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.

Publication Date:

2024-10-29

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2010-11-17

End:

2024-05-09

People and Organizations
Contact:	Information Manager, Hubbard Brook LTER [ email ]
Creator:	Groffman, Peter M (Cary Institute of Ecosystem Studies)
Creator:	Durán, Jorge (University of Coimbra, Portugal)
Creator:	Morse, Jennifer L (Portland State University)
Creator:	Wilson, Geoffrey (Cary Institute of Ecosystem Studies)
Creator:	Green, Mark B (Case Western Reserve University)

Data Entities
Data Table Name:	hourly soil moisture data
Description:	Hubbard Brook elevation gradient soil moisture 2010-2024

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-hbr/137/8/7c2dd224c120e96af1aa57b09f451b9c
Name:	hourly soil moisture data
Description:	Hubbard Brook elevation gradient soil moisture 2010-2024
Number of Records:	118127
Number of Columns:	29

Table Structure

Object Name:

hbr137_snowgrad.vwc.csv

Size:

26118538 byte

Authentication:

ac9f1e9db6b4c64f3141b40e535c0e7d Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Column Name:

date

IL1_VWC_1

IL1_VWC_2

IL2_VWC_1

IL2_VWC_2

IL3_VWC_1

IL3_VWC_2

IH1_VWC_1

IH1_VWC_2

IH2_VWC_1

IH2_VWC_2

IH3_VWC_1

IH3_VWC_2

E01_VWC_1

E01_VWC_2

E02_VWC_1

E02_VWC_2

E03_VWC_1

E03_VWC_2

E07_VWC_1

E07_VWC_2

E08_VWC_1

E08_VWC_2

E09_VWC_1

E09_VWC_2

E10_VWC_1

E10_VWC_2

E12_VWC_1

E12_VWC_2

Definition:

timestamp of sensor observation

IL1 Volumetric Water Content - sensor1

IL1 Volumetric Water Content - sensor 2

IL2 Volumetric Water Content - sensor 1

IL2 Volumetric Water Content - sensor 2

IL3 Volumetric Water Content - sensor 1

IL3 Volumetric Water Content - sensor 2

IH1 Volumetric Water Content - sensor 1

IH1 Volumetric Water Content - sensor 2

IH2 Volumetric Water Content - sensor 1

IH2 Volumetric Water Content - sensor 2

IH3 Volumetric Water Content - sensor 1

IH3 Volumetric Water Content - sensor 2

E01 Volumetric Water Content - sensor 1

E01 Volumetric Water Content - sensor 2

E02 Volumetric Water Content - sensor 1

E02 Volumetric Water Content - sensor 2

E03 Volumetric Water Content - sensor 1

E03 Volumetric Water Content - sensor 2

E07 Volumetric Water Content - sensor 1

E07 Volumetric Water Content - sensor 2

E08 Volumetric Water Content - sensor 1

E08 Volumetric Water Content - sensor 2

E09 Volumetric Water Content - sensor 1

E09 Volumetric Water Content - sensor 2

E10 Volumetric Water Content - sensor 1

E10 Volumetric Water Content - sensor 2

E12 Volumetric Water Content - sensor 1

E12 Volumetric Water Content - sensor 2

External Measurement Definition, Link:

has unit Unitless

Storage Type:

date

float

Measurement Type:

dateTime

ratio

Measurement Values Domain:

Format	YYYY-MM-DD hh:mm
Precision

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Missing Value Code:

Code	NA
Expl	no data available

Code	NA
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Code	NA
Expl	no data available

Code	NA
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Code	NA
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Code	NA
Expl	no data available

Code	NA
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Code	NA
Expl	no data available

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Expl	no data available

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Expl	no data available

Code	NA
Expl	no data available

Code	NA
Expl	no data available

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Expl	no data available

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Expl	no data available

Code	NA
Expl	no data available

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Expl	no data available

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Code	NA
Expl	no data available

Code	NA
Expl	no data available

Code	NA
Expl	no data available

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

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:
HBES Vocabulary	HBR, LTER, Hubbard Brook Ecosystem Study, Hubbard Brook Experimental Forest, New Hampshire, White Mountain National Forest, volumetric water content
ISO 19115 Topic Category	environment
LTER Controlled Vocabulary	ecosystems, forests, climate change, soil moisture, water content
LTER Core Research Area	disturbance
National Research & Development Taxonomy	Ecology, Ecosystems, & Environment

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:

LOCATION DESCRIPTION

Soil temperature and soil moisture have been measured at multiple locations at the Hubbard Brook Experimental Forest (HBEF), as part of a study of the relationships between snow depth, soil freezing and nutrient cycling (http://www.ecostudies.org/people_sci_groffman_snow_summary.html). In October 2010, we established 6 20 x 20-m plots (intensive plots) and 14 10 x 10-m plots (extensive plots) along an elevation gradient, with eight of the plots on north-facing slopes and twelve on south-facing slopes. Soil temperature and soil moisture were measured at hourly intervals on these plots beginning in November 2010. Six locations were discontinued in September 2012 (E04, E05, E06, E11-B, E13, and E14).

DATA DESCRIPTION

In each plot, we installed two replicate Decagon soil moisture and temperature probes (Model 5TM) to 5 cm depth. Decagon 5TM probes record soil moisture as volumetric water content (VWC; reported as % based on m3/m3) calculated using the Topp et al. (1980; Equation 1) from apparent dielectric permittivity ε_a ranging from 1 in air to 80 in water (Decagon Devices 2010). The probes have a resolution of 0.08% VWC from 0-50% VWC and an accuracy of ± 3% in typical mineral soils with solution electrical conductivity less than 10 dS/m and ± 15% from 40-80% VWC. The temperature range is from -40 to 50°C , with a resolution of 0.1 °C and an accuracy of 1°C . Measurements were recorded hourly with a Decagon EM50 datalogger (14 extensive plots) or Campbell Scientific datalogger (6 intensive plots) until September 2012, after which all 14 continuously monitored plots were configured with Decagon EM50 dataloggers. Outliers were excluded through visual identification. We used an ensemble regression approach to then fill gaps in the data by regressing the probe in question against all 27 other probes and calculating the median prediction for a missing value.

Equation 1: $$VWC = -5.3 \times 10^{-2} + 2.92 \times 10^{-2}\varepsilon_a - 5.5 \times 10^{-4}\varepsilon_a^2 + 4.3 \times 10^{-6}\varepsilon_a^3$$

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:

Peter M Groffman

Organization:

Cary Institute of Ecosystem Studies

Email Address:

groffmanp@caryinstitute.org

Id:

https://orcid.org/0000-0001-8371-6255

Id:

https://ror.org/01dhcyx48

Individual:	Jorge Durán
Organization:	University of Coimbra, Portugal

Individual:

Jennifer L Morse

Organization:

Portland State University

Email Address:

jlmorse@pdx.edu

Id:

https://orcid.org/0000-0001-8872-4940

Individual:

Geoffrey Wilson

Organization:

Cary Institute of Ecosystem Studies

Email Address:

wilsong@caryinstitute.org

Id:

https://orcid.org/0000-0003-4454-0669

Id:

https://ror.org/01dhcyx48

Individual:

Mark B Green

Organization:

Case Western Reserve University

Email Address:

mbg78@case.edu

Id:

https://orcid.org/0000-0002-7415-7209

Contacts:

Position:

Information Manager, Hubbard Brook LTER

Address:

234 Mirror Lake Road,

North Woodstock, NH 03262 USA

Phone:

(603) 726-8902 (voice)

Email Address:

hbr-im@lternet.edu

Web Address:

http://www.hubbardbrook.org

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2010-11-17

End:

2024-05-09

Sampling Site:

Description:

IL1: Intensive Low Elevation Plot 1. Aspect: South

Site Coordinates:

Longitude (degree):

-71.71479424

Latitude (degree):

43.94617659

Sampling Site:

Description:

IL2: Intensive Low Elevation Plot 2. Aspect: South

Site Coordinates:

Longitude (degree):

-71.72060047

Latitude (degree):

43.94807308

Sampling Site:

Description:

IL3: Intensive Low Elevation Plot 3. Aspect: South

Site Coordinates:

Longitude (degree):

-71.73064174

Latitude (degree):

43.95019236

Sampling Site:

Description:

IH1: Intensive High Elevation Plot 1. Aspect: North

Site Coordinates:

Longitude (degree):

-71.7684914

Latitude (degree):

43.93415543

Sampling Site:

Description:

IH2: Intensive High Elevation Plot 2. Aspect: North

Site Coordinates:

Longitude (degree):

-71.76717913

Latitude (degree):

43.93218854

Sampling Site:

Description:

IH3: Intensive High Elevation Plot 3. Aspect: North

Site Coordinates:

Longitude (degree):

-71.76180633

Latitude (degree):

43.93077007

Sampling Site:

Description:

E01: Extensive Plot 1. Aspect: North

Site Coordinates:

Longitude (degree):

-71.77291084

Latitude (degree):

43.92738579

Sampling Site:

Description:

E02: Extensive Plot 2. Aspect: North

Site Coordinates:

Longitude (degree):

-71.77643367

Latitude (degree):

43.92305067

Sampling Site:

Description:

E03: Extensive Plot 3. Aspect: North

Site Coordinates:

Longitude (degree):

-71.77745584

Latitude (degree):

43.91985666

Sampling Site:

Description:

E07: Extensive Plot 7. Aspect: South

Site Coordinates:

Longitude (degree):

-71.71862125

Latitude (degree):

43.95490408

Sampling Site:

Description:

E08: Extensive Plot 8. Aspect: South

Site Coordinates:

Longitude (degree):

-71.71984434

Latitude (degree):

43.95885229

Sampling Site:

Description:

E09: Extensive Plot 9. Aspect: South

Site Coordinates:

Longitude (degree):

-71.72161276

Latitude (degree):

43.96068944

Sampling Site:

Description:

E10: Extensive Plot 10. Aspect: South

Site Coordinates:

Longitude (degree):

-71.72874928

Latitude (degree):

43.95810127

Sampling Site:

Description:

E12: Extensive Plot 12. Aspect: South

Site Coordinates:

Longitude (degree):

-71.74066667

Latitude (degree):

43.95311111

Project

Parent Project Information:

Title:

Long-Term Ecological Research at Hubbard Brook Experimental Forest

Personnel:

Individual:

Peter M Groffman

Organization:

Cary Insitute of Ecosystem Studies

Address:

PO AB,

Millbrook, NY 12545

Email Address:

groffmanp@caryinstitute.org

Id:

https://orcid.org/0000-0001-8371-6255

Id:

https://ror.org/01dhcyx48

Role:

Investigator

Individual:

Geoffrey Wilson

Email Address:

wilsong@caryinstitute.org

Id:

https://orcid.org/0000-0003-4454-0669

Role:

Investigator

Additional Award Information:

Funder:

National Science Foundation

Funder ID:

https://ror.org/021nxhr62

Number:

2224545

Title:

LTER: Long Term Ecological Research at the Hubbard Brook Experimental Forest (2022)

URL:

https://www.nsf.gov/awardsearch/showAward?AWD_ID=2224545

Additional Award Information:

Funder:

National Science Foundation

Funder ID:

https://ror.org/021nxhr62

Number:

1637685

Title:

LTER: Long Term Ecological Research at the Hubbard Brook Experimental Forest (2016)

URL:

https://www.nsf.gov/awardsearch/showAward?AWD_ID=1637685

Additional Award Information:

Funder:

National Science Foundation

Funder ID:

https://ror.org/021nxhr62

Number:

1633026

Title:

LTER: Long-Term Ecological Research at the Hubbard Brook Experimental Forest (2016b)

URL:

https://www.nsf.gov/awardsearch/showAward?AWD_ID=1633026

Additional Award Information:

Funder:

National Science Foundation

Funder ID:

https://ror.org/021nxhr62

Number:

1114804

Title:

LTER: Long-Term Ecological Research at Hubbard Brook Experimental Forest (2010)

URL:

https://www.nsf.gov/awardsearch/showAward?AWD_ID=1114804

Maintenance

Maintenance:

Description:	knb-lter-hbr-137.5; additional years of data, addition of qudt unit annotations
Frequency:	annually

Other Metadata

Additional Metadata

additionalMetadata
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        |     |        \___attribute 'packageID' = 'knb-lter-hbr.137.4'
        |     |___text '\n      '
        |___text '\n   '

Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'importedFromXML'
        |     |        \___attribute 'dateImported' = '2024-10-25'
        |     |        \___attribute 'filename' = 'knb-lter-hbr.137.4.xml'
        |     |        \___attribute 'taxonomicCoverageExempt' = 'True'
        |     |___text '\n      '
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Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2024.10.09'
        |     |___text '\n      '
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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

Soil moisture along an elevation gradient at the Hubbard Brook Experimental Forest, 2010 - ongoing

Data Entities

Data Table

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

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Soil moisture along an elevation gradient at the Hubbard Brook Experimental Forest, 2010 - ongoing

+/- Data Entities

Data Table

+/- 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

+/- 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

Additional Metadata