Supporting Information for "Nine Martian Years of polar caps observations by SPICAM-IR"

This dataset contains several additional figures and data for the "Nine Martian Years of polar caps observations by SPICAM-IR". Data and additional figures play special role in this publication, since we use a lot of different representations (seasonal, spatial and cap edges) of sparse dataset in our work. It also includes processed SPICAM-IR CO2 ice equivalent width and water index for orbits without artifacts or distortions and with normal signal-to-noise ratio (>20).

Data Set S1 
This Data Set (spicam_obs.csv) contains CO2 ice equivalent width and water index for orbits without artifacts or distortions and with normal signal-to-noise ratio (>20) and all required observational geometry in a form of csv table. In this file there are 13 following columns:

orbit: name of orbit as in PSA 1B files

spec_num: number of spectrum in this file starting from zero

lat: center latitude of field of view

lon: center longitude of field of view

ls: solar longitude of observation

local_time: local time of observation

incidence: incidence angle

alt_spc: altitude of observation, which determines FOV size

co2ice_index: equivalent width of CO ice 1.43 m band

h2oice_index: index of 1.5 m water ice band

albedo: albedo at 1.37 m, out of major absorption bands

snr: signal-to-noise ratio measure around 1.37 m, out of major absorption bands

martian_year: Martian Year

Using this dataset one can plot all of the figures in the original paper, except for spectra.

Data Set S2
This Data Set (figure4.txt) contains data from Figure 4 in the original paper. Description of the figure:
Diversity of ice spectra on south pole.

(Blue on picture): Slab ice in winter, Ls: 144.15, latitude: -58.7, longitude: 257.58, orbit: 10902A01, 1.43 µm band width: 30.5 nm;

(Orange on picture): Bright CO2 ice, Ls: 253.08, latitude: -86.23, longitude: 315.70, orbit: 1943A01, 1.43 µm band width: 16.4 nm;

(Green on picture): Cryptic region with almost no CO2 ice, Ls: 213.12, latitude: -82.52, longitude: 122.06, orbit: 4169A01, 1.43 µm band width: 1.4 nm;

(Red on picture): Water ice outside of cap in winter in the Hellas basin, Ls: 117.01, latitude: -42.97, longitude: 83.266, orbit: 20144A03, water ice index: 0.47;

(Purple on picture): South permanent cap in the middle of summer, Ls: 322.85, latitude: -86.06, longitude: 311.33, orbit: 19015A01, 1.43 µm band width: 12.1 nm;

(Brown on picture): Fine grained CO2 ice in the spring, Ls: 195.30, latitude: -64.90, longitude: 298.47, orbit: 8867A01, 1.43 µm band width: 6.6 nm

Data Set S3
This Data Set (figure5.txt) contains data from Figure 5 in the original paper. Description of the figure:
Diversity of ice spectra on north pole and spectrum of water ice clouds.

(Blue on picture): Deep CO2 ice on North pole, Ls: 14.48, latitude: 85.72, longitude: 134.13, orbit: 5161A01, 1.43 µm band width: 20.6 nm;

(Orange on picture): ”Cryptic”-like spectra in the end of winter, Ls: 332.38, latitude: 57.47, longitude: 82.96, orbit: 19074A01, 1.43 µm band width: 10.45 nm;

(Green on picture): Spectrum with high water ice index on North pole, Ls: 107.88, latitude: 84.74, longitude: 34.69, orbit: 1002A01, water ice index: 0.758;

(Red on picture): Water ice cloud in aphelion cloud belt, Ls: 114.94, latitude: 11.98, longitude: 254.08, orbit: 8336A01, water ice index: 0.146.

Data Set S4
This Data Set (figure6_bottom.txt, figure6_middle.txt, figure6_top.txt) contains data from Figure 6 in the original paper. Description of the figure:
Seasonal maps of CO2 1.43 µm equivalent width (top), water ice index (middle), and water ice index in log scale for the morning (bottom).

Data Set S5
This Data Set (figure9.txt) contains data from Figure 9 in the original paper. Description of the figure:
Outer crocus line for the south cap for all Martian Years combined. Orange points (on the figure) represent anti-cryptic part (from 260° to 60° east longitude) and cryptic part (from 60° to 260° east longitude).

Data Set S6
This Data Set (figure10.txt) contains data from Figure 10 in the original paper. Description of the figure:
Outer crocus line for the north cap for all Martian Years combined. Different colors (on the figure) represent different Martian Years.