On the urban orographic rainfall anomaly in Jerusalem—a numerical study

✍ Scribed by H. Shafir; P. Alpert

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 832 KB
• Volume: 24
• Category: Article
• ISSN: 0957-1272
• DOI: 10.1016/0957-1272(90)90044-u

✦ Synopsis

A high-resolution meso-7 scale indexing of the orographic precipitation over the Judean Mountains in Israel suggests a positive urban precipitation anomaly in Jerusalem. The urban rainfall enhancement for three case studies is found to be 20-30 per cent as compared to only about 10% for the annual normals. The role of the urban 'heat island' and the larger supply of artificial nuclei is discussed. The method presented here is a primary attempt to separate quantitatively urban precipitation effects over highly complex terrain, by applying a physical model.