Data Package Metadata View Summary

Eddy flux measurements during 2017 from low marsh site (Spartina alterniflora) within Shad Creek catchment, Rowley, Massachusetts, PIE LTER.

General Information

Data Package:
Local Identifier:	knb-lter-pie.505.1
Title:	Eddy flux measurements during 2017 from low marsh site (Spartina alterniflora) within Shad Creek catchment, Rowley, Massachusetts, PIE LTER.
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	We deployed an eddy covariance system to measure ecosystem-atmosphere exchange of CO2 above a low marsh system (Spartina alterniflora) located within the Shad creek catchment off Plum Island Sound, Rowley MA. The data represents CO2 exchange for all July to October 2017. This site was established in 2015.
Short Name:	MAR-SH-EddyFluxTower-2017
Publication Date:	2019
Language:	English

Time Period

Begin:

2017-01-01

End:

2017-12-31

People and Organizations
Contact:	Plum Island Ecosystems LTER
Creator:	Giblin, Anne
Creator:	Forbrich, Inke

Data Entities
Data Table Name:	MAR-SH-EddyFluxTower-2017_csv
Description:	Eddy flux measurements during 2017 from low marsh site (Spartina alterniflora) within Shad Creek catchment, Rowley, Massachusetts, PIE LTER.
Other Name:	MAR-SH-EddyFluxTower-2017_xls
Description:	Excel metadata and data file associated with the csv data source file. Excel file after downloading is to be used for adding/editing new metadata and data.

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-pie/505/1/973c86019430d404ba13347e9a56d70b
Name:	MAR-SH-EddyFluxTower-2017_csv
Description:	Eddy flux measurements during 2017 from low marsh site (Spartina alterniflora) within Shad Creek catchment, Rowley, Massachusetts, PIE LTER.
Number of Records:	17520
Number of Columns:	49

Table Structure

Object Name:

MAR-SH-EddyFluxTower-2017.csv

Size:

3920292

Authentication:

1a48f986fe1953536aa7088e4ddb4f1e Calculated By MD5

Authentication:

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Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

DATE

TIME

FC_SSITC_TEST

FETCH_FILTER

CO2

CO2_SIGMA

H2O

H2O_SIGMA

H_SSITC_TEST

LE_SSITC_TEST

T_SONIC

T_SONIC_SIGMA

VPD

Albedo

Longwave radiation, incoming

Longwave radiation, outgoing

NDVI

NDVIref

Net radiation

PPFD_IN

PPFD_OUT

Shortwave radiation, incoming

Shortwave radiation, outgoing

Soil temperature @5cm

Soil temperature @10cm

Soil temperature @20cm

Soil temperature @40cm

SALINITY

Water table depth

Monin-Obukhov length

U_SIGMA

Friction velocity

V_SIGMA

W_SIGMA

Wind direction

Wind speed

WS_MAX

GPP

NEE

RECO

Column Name:

DATE

TIME

FC_SSITC_TEST

FETCH_FILTER

CO2

CO2_SIGMA

H2O

H2O_SIGMA

H_SSITC_TEST

LE_SSITC_TEST

T_SONIC

T_SONIC_SIGMA

VPD

ALB

LW_IN

LW_OUT

NDVI

NDVIref

NETRAD

PPFD_IN

PPFD_OUT

SW_IN

SW_OUT

TS5

TS10

TS20

TS40

SALINITY

WTD

MO_LENGTH

U_SIGMA

USTAR

V_SIGMA

W_SIGMA

WS_MAX

GPP

NEE

RECO

Definition:

Date of measurements

Timestamp of measurements (center of 30 min averaging period)

Results of the Steady State and Integral Turbulence Characteristics for FC according to Foken (i.e. 1-9)

Footprint quality flag (i.e., 0, 1): 0 and 1 indicate data measured when wind coming from direction that should be discarded and kept, respectively

Carbon Dioxide (CO2) mixing ratio

Standard deviation of CO2 mole fraction

Carbon Dioxide (CO2) turbulent flux (no storage correction)

Water (H2O) vapor mixing ratio

Standard deviation of H2O mole fraction

Soil Heat Flux 1

Soil Heat Flux 2

Sensible heat turbulent flux (no storage correction)

Results of the Steady State and Integral Turbulence Characteristics for H according to Foken (i.e. 1-9)

Latent heat turbulent flux (no storage correction)

Results of the Steady State and Integral Turbulence Characteristics for LE according to Foken (i.e., 1-9)

Atmospheric Pressure

Relative Humidity

Sonic temperature

Standard deviation of sonic temperature

Air temperature

Vapor Pressure Deficit

Albedo

Longwave radiation, incoming

Longwave radiation, outgoing

Normalized Difference Vegetation Index (including tidal inundation)

Reference Normalized Difference Vegetation Index (no tidal inundation)

Net radiation

Photosynthetic photon flux density, incoming

Photosynthetic photon flux density, outgoing

Shortwave radiation, incoming

Shortwave radiation, outgoing

Soil temperature @5cm

Soil temperature @10cm

Soil temperature @20cm

Soil temperature @40cm

SALINITY

Water table depth

Monin-Obukhov length

Standard deviation of velocity fluctuations (towards main-wind direction after coordinates rotation)

Friction velocity

Standard deviation of lateral velocity fluctuations (cross main-wind direction after coordinates rotation)

Standard deviation of vertical velocity fluctuations

Wind direction

Wind speed

maximum wind speed in the averaging period

Monin-Obukhov Stability

Gross Primary Productivity (as CO2, including tidal inundation)

Net Ecosystem Exchange (as CO2, including tidal inundation)

Ecosystem respiration (as CO2, including tidal inundation)

Storage Type:

date

string

Measurement Type:

dateTime

nominal

ratio

nominal

ratio

nominal

ratio

Measurement Values Domain:

Format	YYYY-MM-DD
Precision

Format	hh:mm
Precision

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Type	real

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Type	real

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Unit	wattPerMeterSquared
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Unit	dimensionless
Type	real

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Type	real

Unit	micromolePerMeterSquaredPerSecond
Type	real

Unit	micromolePerMeterSquaredPerSecond
Type	real

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Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

MAR-SH-EddyFluxTower-2017_xls

Entity Type:

document

Description:

Excel metadata and data file associated with the csv data source file. Excel file after downloading is to be used for adding/editing new metadata and data.

Physical Structure Description:

Object Name:

MAR-SH-EddyFluxTower-2017.xls

Size:

12919296

Authentication:

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Authentication:

411073680845ddba4c74ede3d1cf515b0793cc67 Calculated By SHA-1

Externally Defined Format:

Format Name:

application/vnd.ms-excel

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-pie/505/1/890988418b2b49689c787d29a0527a93

Data Package Usage Rights

Data Policies

PIE LTER Data Use Agreement

This work is licensed under the Creative Commons Attribution 4.0 International License, CC BY - Attribution. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. Permission to use this dataset is granted to the Data User free of charge subject to the following terms:

1) Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User will properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator, Year of Data Publication, Title of Dataset, Publisher, Dataset identifier.
For example: Giblin, Anne; Hopkinson, Charles (2000): Rates of benthic metabolism and nutrient cycling in the Parker and Rowley Rivers of the Plum Island Sound estuary. Plum Island Ecosystems LTER, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/17fa8b4fef50c7b85cac3d61482a7cb6
2) Acknowledgement. The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. The Data User should contact the Data Set Contact to ensure the appropriate Granting Programs are acknowledged.
For example: Data sets were provided by the Plum Island Ecosystems LTER. This material is based upon funding supported by the National Science Foundation under Grants #OCE-9726921, OCE-0423565, OCE-1058747, OCE-1238212, OCE-1637630.
3) Notification. The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed. The Data User will provide the data contact with two reprints of any publications resulting from use of the Data Set and will provide copies, or on-line access to, any derived digital products. Notification will include an explanation of how the Data Set was used to produce the derived work.
4) Collaboration. The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.
5) 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.

Keywords

By Thesaurus:
Core Areas	Primary Production, Organic Matter
LTER Controlled Vocabulary	primary production, organic matter, Massachusetts, carbon fluxes, net ecosystem exchange, PIE LTER, Plum Island Ecosystems

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:

We deployed one eddy covariance system to measure NEE of low marsh at PIE. The location of the tower is in the central low marsh area along the Rowley River, within the Shad Creek catchment. Deployment of the system is seasonal (mid-April to mid-November). The site was equipped with a Campbell Scientific® Closed Path System (CPEC200). Micrometeorological instrumentation was mounted on a tower at a height of 4.2m above the marsh surface.
Environmental data were recorded as 10min averages. Air temperature and relative humidity were monitored at the same height as the anemometer (Campbell Scientific HC2S3 enclosed in a naturally aspirated radiation shield). A four-component net radiometer (Hukseflux NR01) was mounted 2 m aboveground of the low marsh. At the same height, one sensor (LI190SB, Licor) monitored reflected photosynthetically active radiation (PAR), incoming PAR was measured at the separate high marsh met station. In addition, a pressure transducer (Campbell Scientific CS456) recorded water table height at the high marsh. Soil temperature at a depth of 2cm, 6cm, 10cm, 20cm and 40cm was measured with (TCAV-L; Campbell Scientific; Logan, Utah, USA), and soil heat flux at a depth of 8 cm was measured with two soil heat flux plates (HFP01-SC; Campbell Scientific; Logan, Utah, USA). This data was recorded on a separate CR3000 datalogger.
Turbulent fluxes of momentum, sensible heat, latent heat and CO2 were determined by the eddy covariance technique (Baldocchi et al. 1988). Half hourly CO2 and H2O fluxes were calculated as the covariance between the turbulent departures from the mean of the 10 Hz vertical wind speed measured with a 3D sonic anemometer (CSAT3; Campbell Scientific; Logan, Utah, USA) and the CO2 and H2O dry mixing ratio measured with the closed path analyzer. Fluxes were processed using EdiRe software (Robert Clement, University of Edinburgh) and reported using the meteorological sign convention where negative NEE indicates carbon uptake and positive NEE indicates carbon loss from the ecosystem. Two coordinate rotations were performed on the wind components, and the time lag between wind and CO2 mixing ratio measurements was determined and removed for each averaging interval of 30min. For every 30 min period, a factor for the correction of the frequency attenuation of the flux was calculated according to Moore [1986] and applied to the flux. Fluxes were calculated using the Edire software (version 1.5.0.32, R. Clement, University of Edinburgh, UK). Afterward, fluxes were filtered for system malfunctioning and calibration periods, integral turbulence characteristics, stationarity, and wind direction [Foken etal., 2012]. We also excluded measurements when less than 80% of the flux was generated within the study area. Thresholds in friction velocity (u∗) for nighttime fluxes were determined using REddyProc .
To continuously monitor aboveground biomass, we calculated a broadband normalized difference vegetation index (NDVI) based on the approach of Wilson and Meyers [2007]. Incoming (i) and reflected (r) Solar (S) and photosynthetically active radiation (PAR) measurements were converted into red and near-infrared reflectance. Solar zenith effects were removed by using data exclusively around solar noon (10 A.M.–2 P.M. EST). In our system, spring tides occurred around noon, so that simultaneous radiation measurements recorded the effect of tidal inundation at that time. A decrease in NDVI would reflect that during inundation the amount of biomass that was air exposed was smaller than under nonflooded conditions. We included this effect in our NEE model by creating two continuous time series of NDVI to simulate flooded and nonflooded conditions: NDVIall which included spring tide effects, and a reference time series, NDVIref, which represented nonflooded conditions.
NEE is gap-filled with a modified PLIRTLE model (NEE=GPP+Reco), using NDVI_all, air temperature and PAR as input. GPP_all and Reco_all are estimated using the two sub-models of the PLIRTLE model. GPP_ref and Reco_ref are modelled with NDVI_ref as input variable and thus represent the fluxes occurring if no tidal inundation had occurred.
References:
Baldocchi et al. [1988]: Measuring Biosphere-Atmosphere Exchanges of Biologically Related Gases with Micrometeorological Methods. Ecology, Vol. 69, No. 5, pp. 1331-1340.
Moore [1986]: Frequency response correction s for eddy correlation systems. Boundary Layer Meteorology, Vol. 37, pp. 17-35.
Foken et al. [2012]: Corrections and Data Quality Control. In: Aubinet, Vesala, Papale (editors): Eddy covariance - a practical guide to measurement and data analysis.
Papale et al. [2006]: Towards a standardized processing of Net Ecosystem Exchange measured with eddy covariance technique: algorithms and uncertainty estimation . Biogeosciences, Vol. 3, pp. 571-583.

People and Organizations

Publishers:

Organization:

Plum Island Ecosystems LTER

Web Address:

http://pie-lter.ecosystems.mbl.edu/

Creators:

Individual:

Anne Giblin

Address:

Marine Biological Lab, 7 MBL Street,

Woods Hole, MA 02543 US

Phone:

(508) 289-7488 (voice)

Phone:

(508) 457-1548 (facsimile)

Email Address:

agiblin@mbl.edu

Id:

http://orcid.org/0000-0003-3851-2178

Individual:

Inke Forbrich

Address:

Marine Biological Laboratory, 7 MBL Street,

Woods Hole, MA 02543 US

Phone:

(508) 289-7741 (voice)

Phone:

(508) 457-1548 (facsimile)

Email Address:

iforbrich@mbl.edu

Contacts:

Organization:

Plum Island Ecosystems LTER

Web Address:

http://pie-lter.ecosystems.mbl.edu/

Metadata Providers:

Organization:

Plum Island Ecosystems LTER

Web Address:

http://pie-lter.ecosystems.mbl.edu/

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2017-01-01

End:

2017-12-31

Sampling Site:

Description:

PIE Eddy Flux station, seasonal tower in a lower elevation salt marsh within Shad creek catchment, Rowley, MA

Site Coordinates:

Longitude (degree):

-70.838233947754

Latitude (degree):

42.734462738037

Project

Parent Project Information:

Title:

Plum Island Ecosystems Long Term Ecological Research (PIE LTER IV, 2016-2022)

Personnel:

Individual:

Anne Giblin

Address:

Marine Biological Lab, 7 MBL Street,

Woods Hole, MA 02543 US

Phone:

(508) 289-7488 (voice)

Phone:

(508) 457-1548 (facsimile)

Email Address:

agiblin@mbl.edu

Id:

http://orcid.org/0000-0003-3851-2178

Role:

principalInvestigator

Individual:

Wilfred Wollheim

Address:

WSAG Institute for the Study of Earth, Oceans, and Space,Morse Hall, Room 452, 8 College Road,

Durham, NH 03824 US

Phone:

(603) 862-0812 (voice)

Email Address:

Wil.Wollheim@unh.edu

Id:

http://orcid.org/0000-0002-5009-3212

Role:

principalInvestigator

Individual:

Jim Morris

Address:

Bell Baruch Institute for Marine and Coastal Sciences, University of South Carolina,

Columbia, SC 29208 US

Phone:

(803) 777-5288 (voice)

Phone:

(803) 777-4002 (facsimile)

Email Address:

morris@inlet.geol.sc.edu

Role:

principalInvestigator

Individual:

Nathaniel Weston

Address:

Department of Geography and the Environment ,Villanova University, 800 Lancaster Avenue,

Villanova, PA 19085 US

Phone:

(610) 519-8009 (voice)

Email Address:

nathaniel.weston@villanova.edu

Id:

http://orcid.org/0000-0002-6837-360X

Role:

principalInvestigator

Individual:

Linda Deegan

Address:

Woods Hole Research Center,

Falmouth, MA 02540 US

Phone:

508-444-1557 (voice)

Email Address:

ldeegan@whrc.org

Id:

http://orcid.org/0000-0002-1017-9599

Role:

principalInvestigator

Individual:

Joe Vallino

Address:

Marine Biological Laboratory, 7 MBL Street,

Woods Hole, MA 02543 US

Phone:

(508) 289-7648 (voice)

Phone:

(508) 457-1548 (facsimile)

Email Address:

jvallino@mbl.edu

Id:

http://orcid.org/0000-0002-4184-4512

Role:

principalInvestigator

Individual:

Robert Pontius

Address:

Clark University, School of Geography, 950 Main Street,

Worcester, MA 01610 US

Phone:

(508) 793-7761 (voice)

Phone:

(508) 793-8881 (facsimile)

Email Address:

rpontius@clarku.edu

Id:

http://orcid.org/0000-0001-7287-5875

Role:

principalInvestigator

Individual:

Jarrett Byrnes

Address:

University of Massachusetts, College of Science and Mathematics,100 Morrissey Blvd,

Boston, MA 02125 US

Phone:

(617) 287-3145 (voice)

Email Address:

Jarrett.Byrnes@umb.edu

Id:

http://orcid.org/0000-0002-9791-9472

Role:

principalInvestigator

Abstract:

The Plum Island Ecosystems (PIE) LTER is developing a predictive understanding of the response of a linked watershed-marsh-estuarine system in northeastern Massachusetts to rapid environmental change. Over the last 30 years, surface sea water temperatures in the adjacent Gulf of Maine have risen at 3 times the global average, rates of sea-level rise have accelerated, and precipitation has increased. Coupled with these changes in climate and sea level are substantial changes within the rapidly urbanizing watersheds that influence water, sediment, and nutrient delivery to the marsh and estuary. In PIE IV our focus is on: Dynamics of coastal ecosystems in a region of rapid climate change, sea-level rise, and human impacts.

NSF OCE LTER-Plum Island Ecosystems:
Dynamics of coastal ecosystems in a region of rapid climate change, sea-level rise, and human impacts.

Funding:

1637630

Maintenance

Maintenance:

Description:

Data collection and processing complete.
Version 01: July 25, 2019, data and metadata updates to comply with importation to DEIMS7 and LTER Data Portal. Used MarcrosExportEML_HTML (working)pie_excel2007_Jun2019.xlsm 6/7/19 12:58 PM for QA/QC to EML 2.1.0.

Frequency:

Other Metadata

Additional Metadata

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        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = ''
        |     |     |     |  \___attribute 'id' = 'millimolePerMole'
        |     |     |     |  \___attribute 'name' = 'millimolePerMole'
        |     |     |     |  \___attribute 'unitType' = ''
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'millimoles of water per  mole of air. Also can be parts per thousand'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = 'W/m²'
        |     |     |     |  \___attribute 'id' = 'wattPerMeterSquared'
        |     |     |     |  \___attribute 'name' = 'wattPerMeterSquared'
        |     |     |     |  \___attribute 'unitType' = 'irradiance'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'irradiance unit'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = '%'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'percent'
        |     |     |     |  \___attribute 'multiplierToSI' = '100'
        |     |     |     |  \___attribute 'name' = 'percent'
        |     |     |     |  \___attribute 'parentSI' = 'numberPerNumber'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'ratio of two quantities as percent composition (1:100)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'partPerThousand'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = 'm/s'
        |     |     |     |  \___attribute 'id' = 'meterPerSecond'
        |     |     |     |  \___attribute 'name' = 'meterPerSecond'
        |     |     |     |  \___attribute 'unitType' = 'speed'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'meters per second'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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Data Package Metadata View Summary

Eddy flux measurements during 2017 from low marsh site (Spartina alterniflora) within Shad Creek catchment, Rowley, Massachusetts, PIE LTER.

Data Entities

Data Table

Non-Categorized Data Resource

Data Package Usage Rights

Data Policies

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

Eddy flux measurements during 2017 from low marsh site (Spartina alterniflora) within Shad Creek catchment, Rowley, Massachusetts, PIE LTER.

+/- Data Entities

Data Table

Non-Categorized Data Resource

+/- Data Package Usage Rights

Data Policies

+/- 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

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata