Abstract
Local rainfall variations over small-scale topographies were investigated in Israel in a systematic sequence of studies in various small watersheds. Dense networks of both standard and directional (inclined) raingauges were utilized over a variety of topographic features 0.4-100 m high. Distinct trends were gradually discerned in the results, and technical means were adapted accordingly to bring out a systematic phenomenology. In addition, computational means were developed to transform raw results into physical, modeller-friendly terms. The importance and benefit of a complete phenomenology in this context, and of its presentation in modeller-friendly terms, are described. It facilitated a more effective application of models to study the local wind field and its effect on the redistribution of raindrops in a given valley. Simulated rainfall distributions in a small watershed very closely reproduced the rather intricate observed patterns.
| Original language | English |
|---|---|
| Pages (from-to) | 13-28 |
| Number of pages | 16 |
| Journal | IAHS-AISH Publication |
| Issue number | 261 |
| State | Published - 1 Dec 2000 |
Keywords
- Directional raingauges
- Fine-scale rainfall distribution
- Hydrologically effective rainfall
- Local rainfall variations
- Local wind field
- Topographic effects
ASJC Scopus subject areas
- Water Science and Technology
- Oceanography