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== Welcome to the KRC Wiki ==
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<div style="font-size:150%;">
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'''Welcome to the KRC Wiki'''
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<div style="font-size:100%;">
  
KRC is a planetary surface temperature model developed by H. H. Kieffer.
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KRC is a computer program designed to compute surface and subsurface temperatures for planets and satellites with or without modest atmospheres. A single KRC run can handle complex subsurface physical properties for a global set of latitudes at a full set of seasons, with enough depth to capture the annual thermal wave, and to compute seasonal atmosphere condensation mass. Initially developed for Mars at the dawn of space exploration, there are generalities that allow this code set to be used for any solid body with any spin vector, in any orbit (around any star), with or without an atmosphere. The code is largely in FORTRAN and has evolved over 50 years and has been used extensively by the planetary science community.
KRC Stands for:
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-K = k = conductivity
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-R = rho = density
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-C = Cp = specific heat
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{{header|Download|KRC|Download the latest version of KRC [[Download_KRC|here]].}}
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KRC was developed by Hugh Kieffer with NASA funding. The web-site is maintained by Arizona State University, The interactive interface is supported by a Caltech, JPL, Northern Arizona University consortium.
  
{{header|Compile|KRC|Instructions to compile the latest version of KRC [[Compile_KRC|here]].}}
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{{header|KRC|on the Web|KRC is now available as a web application. To use KRC on the web, click [http://krc.mars.asu.edu/web_tool/ here]}}
 
  
{{header|KRC|Tutorial|* [http://krc.mars.asu.edu/images/a/ad/KRC_Workshop_2013.pdf 2013 KRC Workshop at Arizona State University: Design and Use of the KRC Thermal Model]
 
* [http://krc.mars.asu.edu/images/7/77/HHK_KRC_THEMIS_Team_Meeting_03082017.pdf H. H. Kieffer - March 2017 Presentation]
 
* A brief introduction to the Davinci interface is presented [[Introduction to the Davinci interface|here]].}}
 
  
{{header|Documentation|for KRC|*[[KRC_JGR_2013|Thermal model for analysis of Mars infrared mapping]] - published in 2013 in the Journal of Geophysical Research.  The paper contains lots of details on the inner workings of KRC and comparisons to other relevant models.}}
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===Run KRC===
** [http://krc.mars.asu.edu/images/e/e2/JGR_Paper_Updates_344_03012017.pdf Corrections to JGR 2013 KRC paper]
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*[[KRC Workshop Videos|Videos]] of Hugh Kieffer describing the Model in a 2 day workshop.
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* [http://krc.mars.asu.edu/images/6/68/helplist_03022017.pdf KRC Planetary Surface Temperatures: Helplist]
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* [http://krc.mars.asu.edu/images/9/98/V34_User_Guide.pdf Guide to KRC version 3.4, and background]
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* [http://krc.mars.asu.edu/images/d/dd/PORB_System.pdf The KRC Planetary ORBit  (PORB) system]
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* [http://krc.mars.asu.edu/images/7/79/PUG.pdf How to change to a body other than Mars: The KRC Planetary ORBit (PORB) System Users Guide]
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* [http://krc.mars.asu.edu/images/4/45/thin.pdf Tuning KRC accuracy/precision vs run time: KRC version 2 and 3: Thin/deep layers and long runs]
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{{header|How|to Guide|*[[:Category:Dust_opacity|Adequately Scale Dust Opacity]]
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KRC can be downloaded from a dedicated [http://krc.mars.asu.edu/svn/listing.php?repname=KRC&path=%2Ftags%2F&#a2752a4ad0822c5acbda0ff9fd26a5c26 repository] with instructions for compilation on [[Mac_instructions | Mac]] and [[Linux_Instructions | Linux]] provided.
* [[:Category: Atmospheric_Properties|Adjust default Atmospheric Properties]]
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* [[:Category: Airless Bodies|Run KRC for non-tidally locked airless bodies]]}}
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{{header|KRC|validation report|* KRC validation reports are available [[Validation_1|here]]}}
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1: KRC can run from the command line using a pre-formatted text 'inputFile'; this is a non user-friendly approach  with direct interface to the code and has access to every KRC parameter (about 200 in all);
  
{{header|Ls|on the Web|A Ls Tool is now available as a web application. To use the Ls Tool on the web, click [http://krc.mars.asu.edu/LsTool/ here]}}
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2: Alternatively, KRC can run from a dedicated  [https://jmars.mars.asu.edu/node/2612 JMARS] layer...
  
{{header|Other| |*[[:Category:Issues|Known Interface Issues]]
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3: A .dvrc can be downloaded from this [[link_DVRC | page]] to run KRC through user-friendly DaVinci. This site provides basic information on how to run KRC in this manner.
*[[:Category:Common Errors|Common User Errors]]
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}}
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===More About KRC===
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More general information about the code is available [[link | here]] and in a [http://onlinelibrary.wiley.com/doi/10.1029/2012JE004164/abstract Journal of Geophysical Research 2013 Article].
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A partial list of peer-reviewed publications using KRC is available [http://krc.mars.asu.edu/index.php?title=Publications here].
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White papers compiling notes on the code evolution are available [[Robin_WP | here]].
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===Body-Specific Tutorial (DaVinci Interface)===
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[[Image:mars_KRC_Blue_black.jpg|left|link=KRC for Mars|200px]]    [[Image:europa_KRC_Blue_v_3_black.jpg|link=KRC for Europa|200px]]    [[Image:bennu_KRC_Blue_black_3.jpg|link=KRC for Bennu|200px]]    [[Image:moon_Blue_v_2_black.jpg|link=KRC for The Moon|200px]]    [[Image:phobos_Blue_v_2_black_2.jpg|left|link=KRC for Phobos|200px]]
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[[Image:comet_KRC_Blue_v_3_black_2.jpg|link=KRC for Comets|200px]]      [[Image:asteroid_KRC_v_5_Blue_black_3.jpg|link=KRC for Asteroids|200px]]   [[Image:exoplanets_KRC_black_4.jpg|link=KRC for Exoplanets|200px]] 
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===Basic Tutorial and Notes (DaVinci Interface)===
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[[Material Properties and Regolith Layering]]
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[[Planetary Fluxes]]
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[[Simulated One Point Mode]]
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[[Dust Opacity For Mars]]
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[[Atmospheric Parameters]]
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[[Condensable Atmosphere]]
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[[Photometric Functions]]
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[[Heat Flow and Bottom Boundary Condition]]
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[[Eclipses]]
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[[Ls vs. Julian Dates vs. Gregorian Dates]]
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[[Thin Layers of Low TI Material]]
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===Known DaVinci Interface Issues===
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This [[link_Issues | page]] lists known Issues with the Davinci Interface.
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===Wishes===
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This [[link_wishes | page]] lists wishes expressed by KRC users.

Latest revision as of 10:14, 11 January 2021

Welcome to the KRC Wiki

KRC is a computer program designed to compute surface and subsurface temperatures for planets and satellites with or without modest atmospheres. A single KRC run can handle complex subsurface physical properties for a global set of latitudes at a full set of seasons, with enough depth to capture the annual thermal wave, and to compute seasonal atmosphere condensation mass. Initially developed for Mars at the dawn of space exploration, there are generalities that allow this code set to be used for any solid body with any spin vector, in any orbit (around any star), with or without an atmosphere. The code is largely in FORTRAN and has evolved over 50 years and has been used extensively by the planetary science community.

KRC was developed by Hugh Kieffer with NASA funding. The web-site is maintained by Arizona State University, The interactive interface is supported by a Caltech, JPL, Northern Arizona University consortium.



Contents

[edit] Run KRC

KRC can be downloaded from a dedicated repository with instructions for compilation on Mac and Linux provided.

1: KRC can run from the command line using a pre-formatted text 'inputFile'; this is a non user-friendly approach with direct interface to the code and has access to every KRC parameter (about 200 in all);

2: Alternatively, KRC can run from a dedicated JMARS layer...

3: A .dvrc can be downloaded from this page to run KRC through user-friendly DaVinci. This site provides basic information on how to run KRC in this manner.

[edit] More About KRC

More general information about the code is available here and in a Journal of Geophysical Research 2013 Article.

A partial list of peer-reviewed publications using KRC is available here.

White papers compiling notes on the code evolution are available here.

[edit] Body-Specific Tutorial (DaVinci Interface)

mars KRC Blue black.jpg
europa KRC Blue v 3 black.jpg bennu KRC Blue black 3.jpg moon Blue v 2 black.jpg
phobos Blue v 2 black 2.jpg

comet KRC Blue v 3 black 2.jpg asteroid KRC v 5 Blue black 3.jpg exoplanets KRC black 4.jpg


[edit] Basic Tutorial and Notes (DaVinci Interface)

Material Properties and Regolith Layering

Planetary Fluxes

Simulated One Point Mode

Dust Opacity For Mars

Atmospheric Parameters

Condensable Atmosphere

Photometric Functions

Heat Flow and Bottom Boundary Condition

Eclipses

Ls vs. Julian Dates vs. Gregorian Dates

Thin Layers of Low TI Material

[edit] Known DaVinci Interface Issues

This page lists known Issues with the Davinci Interface.

[edit] Wishes

This page lists wishes expressed by KRC users.
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