Article: Structural characteristics of annual precipitation in Lake Urmia basin

Hi

At last I got my paper published on the web. It is about patterns of annual precipitation in the basin. You can download it from Springer link.

Structural characteristics of annual precipitation in Lake Urmia basin

The proper citation would be.

Vaheddoost B, Aksoy H (2016) Structural characteristics of annual precipitation in Lake Urmia basin. Theoretical and Applied Climatology (): 1-14, DOI 10.1007/s00704-016-1748-3

Thankfully 

Babak

A very old picture of Lake Urmia (Source: Undefined)

Hi,
To day I got an old picture of Lake Urmia from a friend of mine. It is taken in 1920 but unfortunately there is no evidence that who take this picture.

Lake Urmia 1920 (1299 Shamsi-Jalali)

Lake Urmia, Lake Van & Lake Sevana (Source: NASA Visible Earth)

Hi,

I copied this from the cite NASA Visible Earth. You can see both Lake Van and Urmia by high resolution in it.

• Credit:  Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC

Turkey’s largest lake and Iran’s largest lake are both featured in this true-color image, acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite on September 9, 2003. The deep blue lake on the left is Turkey’ Lake Van. The lake is 120 kilometers long and 80 kilometers wide. It is fed by mountain streams, but has no outlet except evaporation. This has allowed salts and minerals to build in the lake to the point that only one species of fish can survive in its waters.

To the right of Lake Van is Iran’s Lake Urmia. Like Lake Van, Lake Urmia receives water from the surrounding mountains, but has no outlet. Lake Urmia is shallow, and sediment colors its waters turquoise compared to the deep black of Lake Van. North of both lakes is Armenia’s Lake Sevana.

Direct link

New Paper

Hi everyone

My paper about "Structural characteristics of annual precipitation in Lake Urmia Basin" is accepted in Theoretical and Applied Climatology. I will soon put a link about it and you can download and find out about it. There are a lot of discussion about probabilistic and probability distribution function properties of annual rainfall in it.

I added a iso-entropy map as an innovative part that can be handy to recognize the degree of uncertainty in annual precipitation. It seems that the westerly breezing air fronts have the most influence on the properties of the annual rainfall in the basin. It still affect the regions individually and precipitation is strictly dependent on the terrain.

It is concluded that, annual rainfall in all its distributional properties changes radical from West to the East side of the basin as passing through the Lake Urmia but less in passing from North to South.

Thank you

Several Photographs by Hossein Mahmoodi

These pictures are dramatic but beautiful.
I think the bigger the disaster is you can expect for bigger influence. It really breaks my heart. I pray for the better future.
Thank you Mr. Mahmoodi for these beautiful pictures!!!

Annual precipitatition in Lake Urmia Basin

Hi

My last article has now accepted to be published at Theoretical and Applied Climatology. It is about structural characteristics of annual rainfall in Lake Urmia basin. I removed some stuff that I want to share it in here.

My study concludes that, North West and South West of the basin have the highest maximum rainfall amount, while the lowest amounts (i.e. Lowest amount related to max. observed annual rainfall) are related to the East coasts of the LU. To some extent it is confident to recognize that, maximum rainfall in the LUB is related to the altitudes and maximum annual rainfall decreases from West to East. Consequently the main input air fronts of basin are feeding form West and North. Figure 1 shows that the most amount of the vapor and moisture that coming from Turkey toward the LUB is descended inside the Turkish territory (Landsat 4, 5 and 8. USGS, 2015). Minimum amount of rainfall have same pattern while crossing West to East and North West of LUB has the highest min. annual rainfall while the least amounts belongs to Eastern side.

Fig.1. Landsat (4, 5 and 8) views of the West of the basin in the boarder of Turkey and Iran indicating the impact of border’s altitudes on the amount snow available on the land surface. (a) Landsat 4-5. Dec 9, 1987. (b) Landsat 4&5. Feb 4, 2000. (c) Landsat 4&5. May 14, 2007. (d) Landsat 8. Jan 12, 2015. (USGS, 2015)
P.S: please cite the weblog if you want to use this figure in another document

This is first evidence in its own category. Native people believe that Turkish side of the border got more precipitation and this Landsat pictures shows the evidence of such phenomena. Some of my friends believe that the tectonic movements which caused disastrous earthquake at Van (Turky)  in October 2011 is caused in the changes in the terrain which triggered the amount of water vapor crossing the border. 

As a proof they mention that, there were more snow or rain descend in the region but we got a little now a days. This satellite imagery obviously shows the effect of the border's mountains but those not necessarily support the idea of boycotting the air fronts from reaching the inner plains of the basin.

Please share your idea with me

Thankfully

Babak