How hard did it rain on Mars?

How hard did it rain on Mars?

http://earthsky.org/space/how-hard-did-it-rain-on-mars

https://www.elsevier.com/about/press-releases/research-and-journals/how-hard-did-it-rain-on-mars

http://www.skyandtelescope.com/astronomy-news/solar-system/how-hard-did-it-rain-on-ancient-mars-2205201723/

The paper is:

Robert A. Craddock and Ralph D. Lorenz, 2017,
The changing nature of rainfall during the early history of Mars
Icarus, Volume 293, 1 September 2017, Pages 172–179

https://doi.org/10.1016/j.icarus.2017.04.013

http://www.sciencedirect.com/science/article/pii/S0019103516306005

Yours,

Paul H.