DOI: 10.7910/dvn/ndpnbb
title: Modelling Slope Microclimates in the Mars Planetary Climate Model

description: Modelling Slope Microclimates in the Mars Planetary Climate Model

L.Lange, F.Forget, E.Dupont, R.Vandemeulebrouck, A.Spiga, E.Millour, M.Vincendon, A.Bierjon

Laboratoire de Météorologie Dynamique
Copyright 2023. All rights reserved.

Corresponding author: Lucas Lange
Laboratoire de Météorologie Dynamique
4 place Jussieu
Tower 45-55, 3rd floor
75005 Paris, FRANCE
Office 304
mailto: lucas.lange@lmd.ipsl.fr


Supporting information associated with the paper "Modelling Slope Microclimates in the Mars Planetary Climate Model" by L. Lange et al. consists of 34 files generated as part of this work and used to generate several of the figures of this paper:

- VisFlux_1D_Fig2.txt is a 4 x 8 table of floats in ASCII format containing the Visible Flux (W/m^2) on a slope with slope angle 0,10,20, 30° (y-axis), with azimuth ranging from 0 to 360° (step: 45°, x-axis) computed by the 1D Mars PCM at 70°N.

- IRFlux_1D_Fig2.txt is a 4 x 8 table of floats in ASCII format containing the Infrared Flux (W/m^2) on a slope with slope angle 0,10,20, 30° (y-axis), with azimuth ranging from 0 to 360° (step: 45°, x-axis) computed by the 1D Mars PCM at 70°N.

- Tsurf_1D_Fig2.txt is a 4 x 8 table of floats in ASCII format containing the surface temperature (K) of a slope with slope angle 0,10,20, 30° (y-axis), with azimuth ranging from 0 to 360° (step: 45°, x-axis) computed by the 1D Mars PCM at 70°N.

- ts_1D_Lat45_Fig2.txt is a 64224 x 1 table of floats in ASCII format containing the surface temperature (K) of a slope with slope angle of 20°, azimuth of 45° computed by the 1D Mars PCM at 45°N for the complete martian year (669 sols, resolution: 1/96 of sol).

- ts_1D_Lat45_proj_Fig2.txt is a 64224 x 1 table of floats in ASCII format containing the surface temperature (K) of a slope with slope angle of 14.14°, azimuth of 0° computed by the 1D Mars PCM at 45°N for the complete martian year (669 sols, resolution: 1/96 of sol).

- Penteprojetee_Fig3.txt is a 265420800 x 1 table of floats in ASCII format containing the projected slope angle (°) computed with MOLA dataset (resolution 64 pixel per degree).

- class4_hr_Fig4.txt is a 181 x 361 table of floats in ASCII format containing the cover fraction for the flat sub-grid surface for each GCM cells (y-axis: latitude: -90° to 90°, step: 1°; x-axis: longitude: -180° to 180°, step: 1°)

- olympus_all_270_noslope_Fig6.txt is a 1664 x 1536 table of floats in ASCII format containing the surface temperatures (K) obtained from the PCM without the sub-grid slope parameterization at Ls = 270°, local time of 2 pm, in the Olympus Mons region (x-axis: longitudes ranging from 220° to 235°E; y-axis: latitude ranging from 12° to 25°N)

- olympus_all_270_slope_Fig6.txt is a 1664 x 1536 table of floats in ASCII format containing the surface temperatures (K) obtained from the PCM with the sub-grid slope parameterization at Ls = 270°, local time of 2 pm, in the Olympus Mons region (x-axis: longitudes ranging from 220° to 235°E; y-axis: latitude ranging from 12° to 25°N)

- TTes_ComparisonTESPCM_Fig6.txt is a 117 x 3 table of floats in ASCII format containing the latitude (°N) (first column), the mean surface temperature (K) measured by TES (2nd column) and the standard deviation (K) (third column).

- TPCMNoSlope_ComparisonTESPCM_Fig6.txt is a 1666 x 1 table of floats in ASCII format containing the surface temperature predicted by the PCM (K) without the parameterization.

- TPCMSlope_ComparisonTESPCM_Fig6.txt is a 117 x 3 table of floats in ASCII format containing the latitude (°N) (first column), the mean surface temperature (K) predicted by the PCM with the sub slope parameterization (2nd column) and the standard deviation (K) (third column).

- MeanAzitmuth_ComparisonTESPCM_fig6.txt is a 117 x 2 table of floats in ASCI format containing the latitude (°N) (first column) and the mean azimuth (°) (2nd column) of the slopes where the comparison is done.

- Themis_I8971003_Fig7and8.txt is a 3647 x 774 table of floats in ASCII format containing the surface temperatures (K) measured by THEMIS on image I8971003. Temperatures used in Figure 7 are extracted from this table (minimum_latitude= -39.77 ; maximum_latitude= -33.623; westernmost_longitude= 128.56; easternmost_longitude= 130.196. Resolution ~100m)

- PCM_I89710003_Fig7and8.txt is a 788 x 210 table of floats in ASCII format containing the surface temperatures (K) predicted by the PCM on the same domain as THEMIS image I8971003. Temperatures used in Figure 7 are extracted from this table (minimum_latitude= -39.77 ; maximum_latitude= -33.623; westernmost_longitude= 128.56; easternmost_longitude= 130.196. Resolution ~500m)

- ErrorTHEMISPCM_AZI_I8971003_Fig7and8.txt is a 181 x 3 table of floats in ASCII format containing the azimuth (°) (First column), Mean error between the PCM and THEMIS (K) (2nd column) and the standard deviation (K) (third column)

- Themis_I63705006_Fig8and9.txt is a 10854 x 1718 table of floats in ASCII format containing the surface temperatures (K) measured by THEMIS on image I63705006. Temperatures used in Figure 8 are extracted from this table (minimum_latitude= -45.51400; maximum_latitude= -27.20300 ; westernmost_longitude= 108.6550; easternmost_longitude= 112.3030; Resolution ~100m)

- PCM_I63705006_Fig8and9.txt is a 2344 x 467 table of floats in ASCII format containing the surface temperatures (K) predicted by the PCM on the same domain as THEMIS image I63705006. Temperatures used in Figure 8 are extracted from this table (minimum_latitude= -45.51400; maximum_latitude= -27.20300 ; westernmost_longitude= 108.6550; easternmost_longitude= 112.3030; Resolution ~500m)

- ErrorTHEMISPCM_AZI_I63705006_Fig8and9.txt is a 181 x 3 table of floats in ASCII format containing the azimuth (°) (First column), Mean error between the PCM and THEMIS (K) (2nd column) and the standard deviation (K) (third column)

- Lat_TES_Fig10.txt is a 60 x 1 table of floats in ASCII format containing the latitude points (°N) used to compute the difference between the PCM and TES

- Ls_TES_Fig10.txt is a 72 x 1 table of floats in ASCII format containing the solar longitude points (°) used to compute the difference between the PCM and TES

- MapLatLSDAY_PCMminusTES_Fig10.txt is a 72x60 tables table of floats in ASCII format containing the difference between the PCM and TES (K) at 2 p.m.

- MapLatLSNIGHT_PCMminusTES_Fig10.txt is a 72x60 tables table of floats in ASCII format containing the difference between the PCM and TES (K) at 2 a.m.

- CO2_enveloppe_Fig11.txt is a 161 x 3 table of floats in ASCII format containing the solar longitude (°) (first column), the maximum latitudinal extent (°) of CO2 ice in the Southern Hemisphere at a given Ls on a flat surface predicted by the former PCM (second column), the maximum latitudinal extent (°) of CO2 ice in the Southern Hemisphere at a given Ls on a 30° pole-facing slope predicted by the new PCM (third column).

- H2O_North_enveloppe_Fig10.txt is a 221 x 3 table of floats in ASCII format containing the solar longitude (°) (first column), the maximum latitudinal extent (°) of H2O ice in the Southern Hemisphere at a given Ls on a flat surface predicted by the former PCM (second column), the maximum latitudinal extent (°) of H2O ice in the Southern Hemisphere at a given Ls on a 30° pole-facing slope predicted by the new PCM (third column).

- H2O_South_flat_enveloppe_Fig11.txt is a 101 x 3 table of floats in ASCII format containing the solar longitude (°) (first column), the maximum latitudinal extent (°) of H2O ice in the Southern Hemisphere at a given Ls on a flat surface predicted by the former PCM (second column)

- H2O_South_slope_enveloppe_Fig11.txt is a 164 x 3 table of floats in ASCII format containing the solar longitude (°) (first column), the maximum latitudinal extent (°) of H2O ice in the Southern Hemisphere at a given Ls on a 30° pole-facing slope predicted by the new PCM (second column).

- Maximum_Thickness_CO2Ice_South_PoleFacingSlopes_Fig12.txt is a 49 x 65 table of floats in ASCII format containing the maximum CO2 ice mass (kg/m^2) predicted by the PCM on a 30° North facing slopes (y-axis: latitude: -90° to 90°, step: 3.75°; x-axis: longitude: -180° to 180°, step: 5.6250°)

- Maximum_Thickness_H2OIce_South_PoleFacingSlopes_Fig12.txt is a 49 x 65 table of floats in ASCII format containing the maximum H2O ice mass (kg/m^2) predicted by the PCM on a 30° North facing slopes (y-axis: latitude: -90° to 90°, step: 3.75°; x-axis: longitude: -180° to 180°, step: 5.6250°)

- Maximum_Thickness_H2OIce_North_PoleFacingSlopes_Fig112txt is a 49 x 65 table of floats in ASCII format containing the maximum H2O ice mass (kg/m^2) predicted by the PCM on a 30° North facing slopes (y-axis: latitude: -90° to 90°, step: 3.75°; x-axis: longitude: -180° to 180°, step: 5.6250°)

- Tsurf_min_year_Fig13.txt is a 1921 x 5759 table of floats in ASCII format containing the minimum surface temperatures over the year (K) obtained from the PCM without the sub-grid slope parameterization (x-axis: longitudes ranging from 0° to 360°E; y-axis: latitude ranging from -60° to 60°N)

- vincendon_grl2010_data.txt is a 7896x3 table of floats in ASCII format containing the latitude (°N) (first column); longitude (°E) (second column) and solar longitude (°) (third column) of the CO2 ice detections on pole-facing slopes reported by Vincendon et al. 2010 (grl).

- vincendon_jgrl2010_data.txt is a 7896x3 table of floats in ASCII format containing the latitude (°N) (first column); longitude (°E) (second column) and solar longitude (°) (third column) of the H2O ice detections on pole-facing slopes reported by Vincendon et al. 2010 (jgr).

- vincendonjgrl2015_data.txt is a 7896x3 table of floats in ASCII format containing the latitude (°N) (first column); longitude (°E) (second column) and solar longitude (°) (third column) of the CO2 ice detections on pole-facing slopes reported by Vincendon 2015 (jgr).