Cred ca sunt destule referinte pentru varianta "hydric phenomenon/phenomena"
"On the August image, taken during the dry season, and on the March one, realized during the heavy rain period, this fracture is not visible. This linear feature is outlined by a hydric phenomenon..."
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/1975001...
The emerald-green waters of the Fervedouro de Alecrim charm not only for its beauty, but also for the hydric phenomenon that makes people float thanks to the high density of water.
http://www.visitbrasil.com/visitbrasil/opencms/portalembratu...
Viewed in a regional geological context, this anomaly can be explained by a hydric phenomenon associated with a lithostructural event.
https://books.google.de/books?id=UQQRw6uP1OgC&pg=PA185&lpg=P...
In recent years both the natural and anthropic areas of the Vişeu Basin have been greatly damaged by extreme hydric phenomenon caused by the chaotic deforestation of the area, increased precipitation, high pluvio-nival regime and the accentuated asymmetry of the basin itself.
http://www.sciary.com/journal-scientific-scmugeography-artic...