Testing Correspondence between Areas with Hydrated Minerals, as Observed by CRISM/MRO, and Spots of Enhanced Subsurface Water Content, as Found by DAN along the Traverse of Curiosity

Table 2

Comparison of parameters of WEH distributions for groups of CRISM pixels. WEH is derived from the DAN passive data for the case of short-range variability of AEC mass fraction (SR case).

Groups of CRISM pixels		Coverage of the traverse (%)	Number of CRISM pixels	Number of DAN measurements	Mean of the WEH distribution (wt%)	Variance of the WEH distribution	χ^2 for Pearson criteria	-level for Pearson criteria
Reference distribution		81	831	5467	2.64 ± 0.02	0.30	—	—
Phyllosilicates		5	51	293	2.57 ± 0.06	0.17	18.46	0.001
Monohydrated sulfates		4	45	307	2.37 ± 0.09	0.33	11.04	0.051
Polyhydrated sulfates	All	10	101	638	3.06 ± 0.06	0.31	129.22	3.48 × 10^−26
	Of “high intensity”	5	50	312	3.10 ± 0.06	0.18	72.74	5.99 × 10^−15
	Of “low intensity”	5	51	326	2.75 ± 0.05	0.14	9.33	0.156