Fig. 2: Derived surface temperatures and water contents including at ROIs over time.

a,b, Derived surface temperatures (a) and water contents (b) from the LMS reflectance spectra overlaid onto a map of the landing site captured by the LCAM. The yellow dashed lines mark the boundary between the erosion zone and the deposition zone. Numbers and ROIs mark where the reflectance spectra were collected. The base map was created based on the Chang’e-6 LCAM Digital Orthophoto Map. c, Our modelled temperatures at ROI-1 and ROI-2 compared with Diviner observations. The temperatures at ROI-3 are not plotted because little or no thermal correction was required. The red curve shows the variation of the lunar surface temperature with local time fitted from the Diviner data for the same latitude with an offset of 7 K. d, Temporal variation of water contents at the three ROIs. The blue curve shows the temporal trend for water content in the range 30–60° N/S in the northern and southern hemispheres observed by M³ (ref. ⁵¹) with an offset of −18 ppm.