Empirical models of rain-spells characteristics - A case study of a Mediterranean-arid climatic transect

Yaakov Aviad, Haim Kutiel, Hanoch Lavee

Research output: Contribution to journalArticlepeer-review


Environmental (geomorphological, hydrological and ecological) processes are controlled by rainfall, particularly in the Mediterranean, semi-arid and arid regions. Rainfall was analyzed using the concept of rain-spells, i.e., a period of successive rain days preceded and followed by at least one day without rainfall. Daily data from 13 stations along a climatic transect extending from the Judean Mountains with a Mediterranean climate to the Dead Sea arid region in Israel were studied. Rain-spell characteristics (number, yield and duration), based on these data, are presented for different rainfall thresholds, which might be used for different environmental processes such as rock weathering, soil organic matter dynamics, landslides, overland flow and floods and soil erosion. Three estimation models have been developed in order to predict the mean annual Number of Rain-Spells (NRS), mean Rain-Spell Yield (RSY), and mean Rain-Spell Duration (RSD) for the mean annual rainfall and for any given rainfall threshold. These models can be used for current climatic conditions and for scenarios in which the rainfall total changes.

Original languageEnglish
Pages (from-to)84-91
Number of pages8
JournalJournal of Arid Environments
StatePublished - Oct 2013


  • Climatic transect
  • Daily rainfall series
  • Rain-spell
  • Rainfall threshold

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Earth-Surface Processes


Dive into the research topics of 'Empirical models of rain-spells characteristics - A case study of a Mediterranean-arid climatic transect'. Together they form a unique fingerprint.

Cite this