Please help me to identify best numerical model for estimating longshore and cross-shore sediment transport...?

Dear Mr. Noujas

You can check Finkner et al. (1989) that you can find it in link below:

http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1119&context=biosysengfacpub

Brian et al. (2009) presented numerical method for sediment transportation too.

 http://www.sciencedirect.com/science/article/pii/S1537511009000518

and finally you can see the link below:

https://books.google.nl/books?id=sYE5KAtHorQC&pg=PA25&lpg=PA25&dq=calculating+model+of+sedimentary+transportation&source=bl&ots=u94_MLxYwo&sig=6BtfvYAbnCdcehsfrTQYX1fHw2E&hl=en&sa=X&ved=0ahUKEwjBrZWBjY3MAhWC6xoKHQspCFgQ6AEINDAD#v=onepage&q=calculating%20model%20of%20sedimentary%20transportation&f=false

Regards

Massih

Longshore sediment transport is influenced by river influx, tidal variation, storm events, neritic extent and coastal shape. There are no general rules but see for example:

Warner, J. C., Butman, B., & Dalyander, P. S. (2008). Storm-driven sediment transport in Massachusetts Bay. Continental Shelf Research, 28(2), 257-282.

Hi

There are many models, but each model has these limits. The safest is to compare your medèle with some measures on the ground..

Personally I test the model of Mclaren and bowels on sandy beaches.

http://www.sedtrend.com/pdfs/publications/sta_mclaren_bowles.pdf

See also this site: Original EFDC Submodel or state-of-the-art SEDZLJ Submodel?

http://www.efdc-explorer.com/products/efdc-dsi-features/sediment/71/original-efdc-submodel-or-state-of-the-art-sedzlj-submodel.html?contentOnly=yes

The best model will be the one that is the best fit. The larger the sediment, the more resistant to change, such as erosion. Is it an open beach, or a short embayment? How large an influence will tide have? Is it most strongly influenced by seasonal variation or storms? Perhaps a paper such as "Modeling sediment transport in the swash zone: A review" by Bakhtyar et al (2009) may provide an idea. Another one that I like is by Keshtpoor et al (2014) titled "Downdrift beach erosion adjacent to the

Indian River Inlet, Delaware, USA". Good background and general coverage of some key concepts.

Best of luck in your search.

Thanks for all the comments and suggestions. Last few years I'm a using a numerical model "LITDRIFT" of LITPACK software developed by DHI. Main limitation of this model is; it is only applicable for non-cohesive sediments and it is commercial model. Can any one suggest me good numerical model that can incorporate both cohesive and non-cohesive sediment for sediment transport estimation.

What type of environment? Coast, River, sand and dust storms. Each type has another method. Longshore - estimating (with the use of maps or aerial photographs)  accumulation of sediment next to artificial structures in the littoral cell - proved to be quite accurate.

River- much more complicated.

Dust - important mainly in region next to deserts. Using sediment 'traps' of various types. Deposition of dust is quite uniform therefore the traps might represent large areas. 

Depends on what you're trying to model. Evolution of the shoreline? Evolution of the cross-shore profile? Full 3D morphodynamics? This 2014 paper lists some models commonly used depending on shoreline, cross-shore, or 3D modeling purposes. 

http://www.sciencedirect.com/science/article/pii/S0029801814003904?np=y