Description

The Chalmers Atmospheric Water Dataset from the Arctic Weather Satellite (CAWD-AWS) offers the first satellite-based estimates of atmospheric ice particle properties derived from passive microwave measurements.

This dataset is a level 2 processing of the Arctic Weather Satellite (AWS) level 1B instrument data, as provided by EUMETSAT. Thus, data is provided in the instrument's native along-track and across-track data-dimensions. The retrieval methodology builds on the work described in May et al. (2024).

CAWD-AWS provides not only estimates but also quantiles for the following properties:

Variable	Unit	Description
Frozen Water Path (FWP)	\( \mathrm{kg}/\mathrm{m}^2 \)	Mass of ice in a vertical column through the atmosphere.
\(D_m\)	\( \mathrm{m} \)	Mean particle volume-equivalent-diameter in the vertical column.
\(Z_m\)	\( \mathrm{m} \)	Mean particle altitude weighted by particle mass.

Currently, only a preview subset of a few days is publicly available. We plan to continuously process and publish more soon. Sign up here to be notified when more data is available.

Contact peter.mcevoy@chalmers.se.