Identification

Title

Dune Lake, Alaska 12,000 Year Multiproxy Sediment Data

Alternative title(s)

106.449

Abstract

This dataset contains opal, organic carbon and nitrogen contents, and organic δ13C (carbon-13) and δN15 (nitrogen-15) stable isotopes that were analyzed on a sedimentary sequence spanning the past ~12,000 years from Dune Lake, a shallow groundwater-fed lake in the boreal forest region of central interior Alaska. The unusual hydrology of this system relative to most other lakes studied for paleoclimate in this region provides a novel insight into different seasonal aspects of Alaskan paleoclimatology. The record is consistent with a general long-term decrease in wintertime precipitation, possibly accompanied by an increase in permafrost extent, over the Holocene.

Resource type

dataset

Resource locator

https://data.eol.ucar.edu//dataset/106.449

protocol: https

name: Dune Lake, Alaska 12,000 Year Multiproxy Sediment Data homepage

description: Dataset homepage

Unique resource identifier

code

106.449

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

inlandWaters

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

Resource Type

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

Field Surveys

Keyword set

keyword value

Models/Analyses

Ecology

Chemistry

Paleoclimatology

Arctic

Biogeochemical

Keyword set

keyword value

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > ORGANIC MATTER

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER CHEMISTRY

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER FEATURES > LAKES/RESERVOIRS

EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > BIOGENIC SEDIMENTS

EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > FRESHWATER ECOSYSTEMS > LAKE/POND

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > NUTRIENTS > ORGANIC MATTER

originating controlled vocabulary

title

Global Change Master Directory (GCMD)

reference date

date type

revision

effective date

2018-02-27

Geographic location

West bounding longitude

-149.90430

East bounding longitude

-149.90430

North bounding latitude

64.42320

South bounding latitude

64.42320

Temporal reference

Temporal extent

Begin position

1000-01-01T00:00:00Z

End position

2014-06-11T00:00:00Z

Dataset reference date

date type

publication

effective date

2014-06-06T20:33:54Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

none

Limitations on public access

none

Responsible organisations

Responsible party

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

name: homepage

responsible party role

pointOfContact

Responsible party

contact position

Professor, Department of Biological Sciences

organisation name

Idaho State University

full postal address

921 S. 8th Ave Mail Stop 8007

Pocatello

83209-8007

United States

telephone number

(208) 282-4318

email address

finney@isu.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata date

2024-02-07T22:50:33Z

Metadata language

eng; USA