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Research:
Is Israel Getting Warmer as a result of the Greenhouse Effect
Written by Boaz Dayan
Background
What is Reanalysis.?
The following data is a GFS reanalysis in 25 degree resolution for 32.5 Latitude North and 35 Altitude East which is more or less the middle of the country. It is analogous to the Topkarten Reanalysis Maps.Reanalysis is never completely accurate. Many times there are differences between reanalysis and Sonda and Reanalysis and GFS analysis of 0.5 degree resolution. This is a great disadvantage but at the moment there isnt anything else that exists for the years 1948 2000 (There is a 1 degree resolution reanalysis for 2000). This disadvantage does not cause too much difficulty because an equal discrepancy appears for every year so that it is still possible to compare dates and obtain interesting and valuable information. This article will present GFS Reanalysis data, obtained from David Shohami and researched by Boaz Dayan, to clearly demonstrate warming in our area as a result of the Greenhouse Effect.
Geographical Location and Climate in Israel:
Israel is located in the east of the Mediterranean at a latitude of 29-33 north of the equator. As a result of its geographical location it experiences Mediterranean weather in its northern and central areas, characterised by hot and dry summers followed by a winter season when all of the rainfall comes down. The rainy season in Israel begins around September with light drizzles and ends during the month of May. December to February are usually the strongest winter months. A line of dryness begins near Beer Sheba with an average of 200 mm of rain per year. South of that line is all desert climate. This climate is also found further north throughout the Jordan Valley, in the area of Beit Shean, in the eastern slopes of the Judean mountains (the Judean desert), and in the Samarian mountains. The Hermon Mountain is the only area of temperate climate in Israel. It is situated at a height of 1600 2000 meters with cool temperatures even in the summer and most rainfall comes down as snow.
Influencing Factors on Rainfall in Israel
The further north the location - the larger the quantity of rain.
The higher the location the larger the quantity of rain.
The further West the location the larger the quantity of rain.
Major Characteristics affecting Temperatures in Israel
The further north the lower the temperatures.
The higher the location - the lower the temperatures.
The further the location from the sea, the bigger the difference in temperature between day and night.Temperatures inside the cities are higher than in open spaces due to Urban Heat Islands.
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