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Creation date"Creation date" is a predefined property that corresponds to the date of the first revision of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

17:30:35, 7 April 2017 +

Current future collaborators

This is part of a the Permafrost Model too … This is part of a the Permafrost Model toolbox, current collaboration with Elchin Jafarov at Los Alamos National Labs and with Kevin Schaeffer at the National Snow and Ice Data Center, and Gary Clow at the USGS, Denver, is ongoing for development of this toolbox.s ongoing for development of this toolbox. +

Describe available calibration data

N/A +

Describe available test data

N/A +

Describe ideal data

N/A +

Describe input parameters model

USer-specified data on temperature distrib … USer-specified data on temperature distributions</br></br>We present the Frost model with a subsampled version of the CRU-NCEP reanalysis data for the region of Alaska. The geographical extent of this dataset has been reduced to greatly reduce the number of ocean, Aleatian Islands or Canadian pixels. The spatial resolution has been reduced by a factor of 13 in each direction, resulting in an effective pixel resolution of about 10km.</br></br>The data are monthly average temperatures for each month from January 1901 through December 2009.h from January 1901 through December 2009. +

Describe length scale and resolution

There is no specific length scale and resolution to the index, as long as temperature conditions remains similar over the scale. +

Describe output parameters model

Air Frost number +

Describe processes

The mean annual temperature of the warmest and coldest months at a given location gives a first-order estimate of distribution of permafrost. +

Describe time scale and resolution

mean annual conditions +

DevelopmentCode

Active +

DevelopmentCodeYearChecked

2020 +

Development still active

Yes +

Email address

irina.overeem@colorado.edu +

Extended model description

This model implement the calculation of th … This model implement the calculation of the 'Frost Number', a dimensionless ratio based on freezing and thawing degree days in the year. Specifically, the 'Air Frost Number' intents to predict the existence of permafrost at a given location based on a cosine-function approximating the annual temperature distribution.ating the annual temperature distribution. +

First name

Irina +

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Model:Frost Model +, Model:Frost Model + and Model:Frost Model +

Input format model other

NetCDF +

Institute

CSDMS +

Last editor is"Last editor is" is a predefined property that contains the page name of the user who created the last revision and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

User:WikiSysop +

Last name

Overeem +

M-quotient

0 +

Manual model available

No +

Memory requirements

small +

ModelDomain

Terrestrial + and Cryosphere +

Model also known as

FrostNumber +

Modelautophrases

frost +, distribution +, model +, predicts +, air frost number +, thawing degree days +, dimensionless ratio based +, frost number +, model implement +, implement the calculation +, dimensionless ratio +, freezing and thawing +, thawing degree +, degree days +, air frost +, ratio based +, based on freezing +, number +, annual temperature distribution +, annual temperature +, cryosphere +, permafrost + and frost model +

Model availability

As code + and As teaching tool +

Model keywords

annual temperature +, cryosphere + and permafrost +

Model type

Single +

Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

02:15:08, 17 September 2020 +

Nr-of-pubs

-- +

One-line model description

Frost model predicts the likelihood of occurrence of permafrost in the land surface based on the monthly temperature distribution +

Output format model other

NetCDF +

Phone

+1-303-4926631 +

Postal address1

4001 Discovery Dr +

Postal code

80303 +

Post processing software

false +

Pre processing software

false +

Processing error"Processing error" is a predefined property provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> and represents errors that appeared in connection with improper value annotations or input processing.

BSD or MIT X11 +

Python +

short +

Source code availability

Through web repository +

Source web address

https://github.com/permamodel +

Spatial dimensions