Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Using wildland fire tracer molecules to investigate fire frequency and vegetative combustion sources archived in the Juneau Icefield of Alaska

Metadata Updated: July 6, 2024

The past decade includes some of the most extensive boreal forest fires in the historical record. Environmental drivers include warming temperatures, changing precipitation patterns, desiccation of thick organic soil layers, and increased ignition frequency from lightning. Wildland fires produce smoke aerosols that can travel thousands of kilometers, before blanketing the surfaces on which they fall, such as the Juneau Icefield of Alaska. This data release presents chemical constituent and physical particulate results from investigations of wildland fire smoke deposits and other atmospheric deposition characteristics stored in layers of ice in the Juneau Icefield of Alaska, USA (Tables 1 and 2). We drilled a series of four firn cores in summer of 2016 and two cores in summer of 2017 in cooperation with the Juneau Icefield Research Program (JIRP). The ice core sampling locations are shown in the Juneau Icefield Alaska Map jpg graphic. The JIRP cores comprise a transect that spans the high-precipitation southwestern slopes of the Juneau Icefield (Lemon Creek and Taku Glaciers), to the relatively drier sites of the central plateau (Matthes Glacier), and ends at the top of the Llewellyn Glacier, which is experiencing some of the most dramatic melt on the entire icefield. A new gas chromatography tandem mass spectrometry method was developed to analyze all ice core samples (2016 and 2017) for monosaccharide anhydrides, which are unique molecular identifiers of biomass combustion, rather than fossil fuel combustion (Tables 3 and 4). The 2016 ice samples were also analyzed for major ions, particle counts, and stable isotopes of oxygen and hydrogen in water which are also present in this data release (Table 4).

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/1aca6a132a963e6cca2a313f671f6195
Identifier USGS:5e472c3ee4b0ff554f6837bc
Data Last Modified 20200820
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 2d273035-56ce-4b19-a0b3-3d5d2602a41f
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -136.5,57.75,-132.5,59.75
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash bc5600c28ee82331742762ef9f950a9c2ff5af44f5e29afdb809f58346613944
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -136.5, 57.75, -136.5, 59.75, -132.5, 59.75, -132.5, 57.75, -136.5, 57.75}

Didn't find what you're looking for? Suggest a dataset here.