Identification

Title

Temperature, discharge and light data for Ivishak Hot Spring, Alaska

Alternative title(s)

106.350

Abstract

The productivity of a perennial, Arctic spring-stream was investigated. Ivishak Spring has the stable discharge (~131 L/s) and temperature (~4-8 deg C) typical for springs. It is unusual, however, in having an annual cycle of daylight from 24 hrs/d (summer) to 0 hrs/d (winter). It was tested from the hypothesis that stored detritus would buffer carbon limitation during winter when gross primary production (GPP) is minimized, resulting in constant rates of community respiration (CR) year-round due to constant temperatures. Open-channel methods were used to measure GPP and CR monthly from March 2007 to August 2009. Mean annual GPP was 458 gC/m2. Such a level is typical for temperate desert streams but was surprising for an Arctic stream. Annual CR (887 gC/m2) was also remarkable. The high metabolism of this stream is explained by an open canopy, moderate year-round temperatures, stable bed, and high bryophyte biomass (48 gAFDM/m2). Strong seasonal cycles of GPP were mirrored by CR (r=0.65) indicating the possibility of carbon limitation during winter. This result falsified the hypothesis that CR would be relatively stable year-round due to a detritus buffer and constant temperature.

Resource type

dataset

Resource locator

https://data.eol.ucar.edu//dataset/106.350

protocol: https

name: Temperature, discharge and light data for Ivishak Hot Spring, Alaska homepage

description: Dataset homepage

Unique resource identifier

code

106.350

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

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

Weather Stations

Streamflow Station

Keyword set

keyword value

Land Based

Hydrology

Arctic

Keyword set

keyword value

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > LIGHT TRANSMISSION

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER PROCESSES/MEASUREMENTS > DISCHARGE/FLOW

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > WATER TEMPERATURE

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-02-27

Geographic location

West bounding longitude

-147.72100

East bounding longitude

-147.71900

North bounding latitude

69.02500

South bounding latitude

69.02400

Temporal reference

Temporal extent

Begin position

2006-08-08T00:00:00Z

End position

2009-08-05T23:59:59Z

Dataset reference date

date type

publication

effective date

2011-12-07T17:44:04Z

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

organisation name

email address

huryn@bama.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

2024-02-07T22:51:52Z

Metadata language