Data Package Metadata View Summary

TEST DATASET WITH LOTS OF MARKDOWN AND BIBTEX. Polaris Project 2017: Permafrost carbon and nitrogen, Yukon-Kuskokwim Delta, Alaska

General Information

Data Package:
Local Identifier:	edi.99997.3
Title:	TEST DATASET WITH LOTS OF MARKDOWN AND BIBTEX. Polaris Project 2017: Permafrost carbon and nitrogen, Yukon-Kuskokwim Delta, Alaska
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	TEST DATASET WITH LOTS OF MARKDOWN AND BIBTEX. This project is integrating scientific research in the Arctic with education and outreach, with a strong central focus on engaging undergraduate students and visiting faculty from groups that have had little involvement in Arctic science to date. The central element of the project is a month-long research expedition to the Yukon River Delta in Alaska. The expedition provides a deep intellectual and cultural immersion in the context of an authentic research experience that is paramount for "hooking" students and keeping them moving along the pipeline to careers as Arctic scientists. The overarching scientific issue that drives the research is the vulnerability and fate of ancient carbon stored in Arctic permafrost (permanently frozen ground). Widespread permafrost thaw is expected to occur this century, but large uncertainties remain in estimating the timing, magnitude, and form of carbon that will be released when thawed. Project participants are working in collaborative research groups to make fundamental scientific discoveries related to the vulnerability of permafrost carbon in the Yukon River Delta and the potential implications of permafrost thaw in this region for the global climate system. This data set includes permafrost cores, with ammonium, nitrate, volumetric ice content, N mineralization rates, %C, and %N results from the 2017 expedition. And bulleted lists are also supported: - Science - Engineering - Math It can also include equations: $$\left( x + a \right)^{n} = \sum_{k = 0}^{n}{\left( \frac{n}{k} \right)x^{k}a^{n - k}}$$ Plus, it can include all of the other features of [Github Flavored Markdown (GFM)](https://github.github.com/gfm/).
Purpose:	A synopsis of the dataset describes its purpose and contents, including one or more paragraphs as well as table(s) and figure(s) that summarize the data included in the data paper, including a summary of key findings if appropriate.
Publication Date:	2018

Time Period

Begin:

2017-06-25

End:

2017-08-06

People and Organizations
Contact:	Ludwig, Sarah (Woods Hole Research Center, Lab Manager/Research Assistant) [ email ]
Creator:	Ludwig, Sarah (Woods Hole Research Center, Lab Manager/Research Assistant)
Creator:	Holmes, Robert (Woods Hole Research Center)
Creator:	Natali, Susan (Woods Hole Research Center)
Creator:	Mann, Paul
Creator:	Schade, John (Woods Hole Research Center)
Creator:	Jardine, Laura
Associate:	Holmes, Robert (Woods Hole Research Center, principalInvestigator)
Associate:	Natali, Susan (Woods Hole Research Center, coPrincipalInvestigator)
Associate:	Mann, Paul

Data Entities
Data Table Name:	Polaris_2017_Permafrost.csv
Description:	This data set includes permafrost cores, with ammonium, nitrate, volumetric ice content, N mineralization rates, %C, and %N results from the 2017 expedition

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-d.lternet.edu/package/data/eml/edi/99997/3/6d5ab22ba9c8e96e1315ed5c1b841026
Name:	Polaris_2017_Permafrost.csv
Description:	This data set includes permafrost cores, with ammonium, nitrate, volumetric ice content, N mineralization rates, %C, and %N results from the 2017 expedition
Number of Columns:	30

Table Structure

Object Name:

Polaris_2017_Permafrost.csv

Size:

17172 bytes

Authentication:

ce9f97dd4f1cee964faf02942a34383ae31da1f5 Calculated By SHA1

Externally Defined Format:

Format Name:

text/csv

Table Column Descriptions

Column Name:

Date

Sample ID

Site ID

Landcover type

Burn history

Latitude

Longitude

Thaw depth (cm) =moss+OL

Moss/lichen depth (cm)

Thawed soil depth (cm)

section top (cm)

section bottom (cm)

section height (cm)

actual top (cm)

actual bottom (cm)

Sample type

Bulk Density (g/cm3)

soil moisture %

GWC g/g

VIC (cm3/cm3)

SOM %

C mg/mg

N mg/mg

C/N

NH4 (ug/g-soil)

NO3 (ug/g-soil)

Net N mineralization rate (ugN/g-soil/day)

Frozen DIN N-mg/m2

Frozen N g/m2

Frozen C g/m2

Definition:

Sample collection year

Unique identifier that is a combination of site name, core number, and subsection number

72B = 1972 burn, B = 2015 burn, U = unburned, number corresponds to replicate

Landcover type. Either peat plateau, fen, or drained lake

Old burn corresponds to 1972 fires, recent burn to 2015 fires

Latitude of collection site

Longitude of collection site

Thaw depth measured in soil pit, includes live moss/lichen layer + thawed organic layer below

Depth of live moss/lichen layer on top of organic layer

Soil depth is thawed layer (here all organic) below live moss/lichen layer

Top of frozen subsection (0 cm means beginning of frozen ground)

Bottom of frozen section (mostly in 10 cm increments)

Length of subsection used for subsequent analyses. Sometimes the 10cm segment was further split

Adjusts frozen core depth by adding thaw depth and accoutning for when sections are split to accurately place sample in the soil profile

Since we sampled in July, some of the frozen soil we drilled is actually active layer and some is permafrost. We used our average September thaw depths from other studies to estimate frozen active layer depth cutoffs

Bulk density of the sample: Dry weight/volume

Percent moisture in the soil: (wet - dry weight)/wet weight * 100

Gravimetric water content in the sediment: (wet-dry weight)/dry weight

Volumetric ice content: GWC * bulk density * 0.9167 g/cm3

Percent soil organic matter measured by loss on ignition

Proportion carbon in dry soil

Proportion nitrogen in dry soil

Ratio of carbon to nitrogen in dry soil

Concentration of ammonium in dry soil from 2M KCl extractions

Concentration of nitrate in dry soil from 2M KCl extractions

Net nitrogen mineralization rate measured by incubating soils for 30 days and extracting with 2M KCl

Soil dissolved inorganic nitrogen pool scaled to segment height

Soil total nitrogen pool scaled segment height

Soil carbon pool scaled to segment height

Storage Type:

Measurement Type:

dateTime

nominal

interval

ratio

nominal

ratio

Measurement Values Domain:

Format	YYYY
Precision

Definition

Unique identifier that is a combination of site name, core number, and subsection number

Definition

72B = 1972 burn, B = 2015 burn, U = unburned, number corresponds to replicate

Definition

Landcover type. Either peat plateau, fen, or drained lake

Definition

Old burn corresponds to 1972 fires, recent burn to 2015 fires

Unit	arc_degree
Type	real

Unit	arc_degree
Type	real

Unit	centimeter
Type	natural

Unit	centimeter
Type	whole

Unit	centimeter
Type	natural

Unit	centimeter
Type	whole

Unit	centimeter
Type	real

Unit	centimeter
Type	real

Unit	centimeter
Type	natural

Unit	centimeter
Type	real

Definition

Unit	gramsPerCubicCentimeter
Type	real

Unit	dimensionless
Type	real

Unit	gramsPerGram
Type	real

Unit	cubicCentimetersPerCubicCentimeters
Type	real

Unit	dimensionless
Type	real

Unit	milligramsPerMilligram
Type	real

Unit	milligramsPerMilligram
Type	real

Unit	dimensionless
Type	real

Unit	microgramsPerGramSoil
Type	real

Unit	microgramsPerGramSoil
Type	whole

Unit	microgramsPerGramSoilPerDay
Type	real

Unit	milligramsPerSquareMeter
Type	real

Unit	gramsPerSquareMeter
Type	real

Unit	gramsPerSquareMeter
Type	real

Missing Value Code:

Code	"NA"
Expl	NA corresponds to not measured

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

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.

External Annotations

With link(s) out to external vocabularies
Dataset Subject grassland biome

Keywords

By Thesaurus:
None	arctic, sediment, carbon, nitrogen, fire, alaska

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:

Permafrost Cores

Thawed horizon was excavated, and frozen cores were drilled using a SIPRE drill. Samples were cleaned, wrapped, and kept frozen until analysis in the lab. Samples were sectioned by horizon or split such that each subsection was not longer than ~10 cm. Each subsection was analyzed for bulk density, soil moisture, soil organic carbon, %N, %C, volumetric ice content, extracted with 2 M KCl for NO3, and NH4. Additionally, net nitrogen mineralization rates were measured by similarly extracting subsamples that incubated for 30 days.

Citation:

Title:

Title for a paper that used this dataset.

Publication Date:

2017

Author(s):

Individual:

Mark Jarkady

Article:

Journal:

EcoSphere

Volume:

Page Range:

Publication Place:

https://doi.org/10.1002/ecs2.2166

Sampling Area and Study Extent

Sampling Description:

Site locations were chosen such that they were within either hiking distance or a short helicopter flight from our basecamp.

Sampling Area And Frequency:

All samples were collected in June 2017. Samples were collected in unburned peat plateaus, as well as those that burned in 2015 and 1972. Locations of samples within each site was selected randomly.

Quality Control
Quality Control Step 1:

Description:

Samples were verified by resampling 5% of all physical samples by an independent observer, and comparing results for inter-observer consistency.

People and Organizations

Creators:

Individual:

Sarah Ludwig

Organization:

Woods Hole Research Center

Position:

Lab Manager/Research Assistant

Address:

735 State St.,

Suite 300,

Santa Barbara, CA 93101 USA

Phone:

805-893-2500

Email Address:

sludwig@whrc.org

Id:

https://orcid.org/0000-0002-2873-479X

Individual:

Robert Holmes

Organization:

Woods Hole Research Center

Email Address:

rmholmes@whrc.org

Id:

https://orcid.org/0000-0000-0000-0000

Individual:

Susan Natali

Organization:

Woods Hole Research Center

Email Address:

snatali@whrc.org

Id:

https://orcid.org/0000-0000-0000-0000

Individual:

Paul Mann

Email Address:

paul.mann@northumbria.ac.uk

Id:

https://orcid.org/0000-0000-0000-0000

Individual:

John Schade

Organization:

Woods Hole Research Center

Email Address:

jschade@whrc.org

Id:

https://orcid.org/0000-0000-0000-0000

Individual:

Laura Jardine

Email Address:

lejardine@my.okcu.edu

Id:

https://orcid.org/0000-0000-0000-0000

Contacts:

Individual:

Sarah Ludwig

Organization:

Woods Hole Research Center

Position:

Lab Manager/Research Assistant

Email Address:

sludwig@whrc.org

Id:

https://orcid.org/0000-0002-2873-479X

Associated Parties:

Individual:

Robert Holmes

Organization:

Woods Hole Research Center

Email Address:

rmholmes@whrc.org

Id:

https://orcid.org/0000-0000-0000-0000

Role:

principalInvestigator

Individual:

Susan Natali

Organization:

Woods Hole Research Center

Email Address:

snatali@whrc.org

Id:

https://orcid.org/0000-0000-0000-0000

Role:

coPrincipalInvestigator

Individual:

Paul Mann

Email Address:

paul.mann@northumbria.ac.uk

Id:

https://orcid.org/0000-0000-0000-0000

Role:

coPrincipalInvestigator

Metadata Providers:

Individual:

Sarah Ludwig

Organization:

Woods Hole Research Center

Position:

Lab Manager/Research Assistant

Email Address:

sludwig@whrc.org

Id:

https://orcid.org/0000-0002-2873-479X

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2017-06-25

End:

2017-08-06

Geographic Region:

Description:

These data are from the Yukon-Kuskokwim River Delta, Alaska, approximately halfway between Bethel and St. Mary's. The region recently burned in 2015 and has older burns from 1972. The area is flat with numerous lakes and wetlands. Terrestrial landscapes are peat plateaus roughly 1-3 meters above wetlands, stream, and lakes. All of these samples are from lake sediment cores.

Bounding Coordinates:

Northern:	61.3053	Southern:	61.1861
Western:	-163.3736	Eastern:	-162.3953

Project

Parent Project Information:

Title:

Polaris: Catalyzing Demographic Change in the Arctic Research Community through an Immersive and Sustained Undergraduate Research Experience

Personnel:

Individual:	Sarah Ludwig
Role:	originator

Individual:	Robert Holmes
Role:	Principal Investigator

Individual:	Paul Mann
Role:	Co-Principal Investigator

Individual:	Ambrose Jearld
Role:	Co-Principal Investigator

Individual:	Susan Natali
Role:	Co-Principal Investigator

Individual:	John Schade
Role:	Former Co-Principal Investigator

Additional Award Information:

Funder:

National Science Foundation

Funder ID:

https://doi.org/10.13039/00000001

Number:

1546024

Title:

Scientia Arctica: A Knowledge Archive for Discovery and Reproducible Science in the Arctic

URL:

https://www.nsf.gov/awardsearch/showAward?AWD_ID=1546024

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'abbreviation' = '°'
        |     |     |        \___attribute 'id' = 'arc_degree'
        |     |     |        \___attribute 'multiplierToSI' = '0.01745329'
        |     |     |        \___attribute 'name' = 'arc_degree'
        |     |     |        \___attribute 'parentSI' = 'dimensionless'
        |     |     |        \___attribute 'unitType' = 'dimensionless'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'abbreviation' = 'mg/mg'
        |     |     |        \___attribute 'id' = 'milligramsPerMilligram'
        |     |     |        \___attribute 'multiplierToSI' = '1'
        |     |     |        \___attribute 'name' = 'milligramsPerMilligram'
        |     |     |        \___attribute 'parentSI' = 'gramsPerGram'
        |     |     |        \___attribute 'unitType' = 'massPerMass'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'abbreviation' = 'ug/g-soil'
        |     |     |        \___attribute 'id' = 'microgramsPerGramSoil'
        |     |     |        \___attribute 'name' = 'microgramsPerGramSoil'
        |     |     |        \___attribute 'unitType' = 'massPerMass'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'abbreviation' = 'ug/g-soil/day'
        |     |     |        \___attribute 'id' = 'microgramsPerGramSoilPerDay'
        |     |     |        \___attribute 'name' = 'microgramsPerGramSoilPerDay'
        |     |     |        \___attribute 'unitType' = 'massPerMassFlux'
        |     |     |___text '\n      '
        |     |___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.

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Data Package Metadata View Summary

TEST DATASET WITH LOTS OF MARKDOWN AND BIBTEX. Polaris Project 2017: Permafrost carbon and nitrogen, Yukon-Kuskokwim Delta, Alaska

Data Entities

Data Table

Data Package Usage Rights

External Annotations

Keywords

Methods and Protocols

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

Permafrost Cores

Author(s):

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

TEST DATASET WITH LOTS OF MARKDOWN AND BIBTEX. Polaris Project 2017: Permafrost carbon and nitrogen, Yukon-Kuskokwim Delta, Alaska

+/- Data Entities

Data Table

+/- Data Package Usage Rights

+/- External Annotations

+/- Keywords

+/- Methods and Protocols

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

Permafrost Cores

Author(s):

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Additional Metadata

Data Entities

Data Package Usage Rights

External Annotations

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Additional Metadata