- Identify the causes and occurring frequency of heavy rain weather caused floodsin the South Central Region, the period 1986 - 2010
- Determine the role of topography in formation of the heavy rains.
- Heavy rain weather warning and propose mitigation measures to prevent damage.

Theoretical results:Using the traditional and interdisciplinary approach of Geography, cause, frequency of occurrence of heavy rains in relation to morphological terrain conditions on 02 different areas were identified clearly
Applied results: Applications in meteorological, hydrological forecasting; risk management and disaster prevention in local areas of SouthCentral Region (SCR).

Affirming new; thenecessary incorporate research directions: geography - geomorphology terrain, climate and statistical synoptic classification in forecasting the potential heavy rain areas of the SCR.

- Scientific papers in referred journals (list):
(i) Nguyen Khanh Van, Do Le Thuy, Tran Van Duc (2013). Causes and occurring frequency of heavy rain, “unusual heavy rain” in the area from Hai Van Pass to Ca Pass in SouthCentral Region of Vietnam (period 1986 - 2010). Journal of Earth Sciences, N°2 (T35) / 2013. Pp. 163-174.
(ii) Nguyen Khanh Van, Tong Phuc Tuan, Vuong Van Vu (2013).The Relation among heavy rainsand goemorphic patterns at the Central Coastal Region of Vietnam from Thanh Hoa to Khanh Hoa provinces. Proceedings“The third International MAHASRI/HyARC Workshop on Asia Monsoon and Water Cycle”. August 28-30/2013, Da Nang, Vietnam. Pp 155-164.
(iii)Nguyen Khanh Van, Tong Phuc Tuan, Vuong Van Vu, Nguyen Manh Ha (2013). The heavy rain differences based on topo-geographical analyse at Coastal Central Region, from Thanh Hoa to Khanh Hoa. Journal of Earth Sciences, N°4 (T35)/2013. Pp. 301-309.
(iv) Nguyen Khanh Van, Do Le Thuy, Tong Phuc Tuan, Tran Anh Duc (2013). Heavy rains over the Khanh Hoa Province – the causes and occurring frequency. Journal of Hydrometeorology, N°635, January 11/2013. Pp. 1-8.
- Technological products (describe in details: technical characteristics, place):
+ Final Synthesis Report, Summary Report(Kept at theInstitute of Geography)
+ System integrated maps and thematic maps (Kept at theInstitute of Geography)
(i) Total rainfall distribution map of the SouthCentral Region (SCR), scale 1/250.000.
(ii) Heavy rainfall/time distribution map of the SCR, scale 1/250.000
(iii) 02 Heavy rainfall/time maps under typical synoptic situation (cold air, the situation relating to cold air) on Ca Pass area (Phu Yen - Khanh Hoa), scale: 1/100.000.
(iv) Mountain view map of the SCR, 1/250.000
(v) The terrain surface linears of the SCR, 1/250.000.
(vi) Zoning heavy rain according to structured terrain of the SCR, 1/250.000
(vii) 02 Simulatedheavy rainfall/time distribution maps (by cold air, by situations relating to cold air) to structured terrain of the SCR, 1/250.000.
(viii) 02 Simulatedheavy rainfall/time distribution maps (by cold air, by situations relating to cold air) simulates to structured terrain of the Ca Pass Area 1/100.000
+ Database; specialized data (Kept at the Institute of Geography)
(i) The system of weather synoptic situation maps (typically cause heavy rains).
(ii) Rainfall data system (for 25 and 30 years) of the 51 stations in the SCR.
(iii) The statistics of heavy, very heavy rains for 25, 30 years of the 51 stations in the SCR.
(iv) Average heavy rainfall /time of 51 stations by 07 synoptic situation types over SCR.
(v) The data system of topography, geomorphology, characteristics of terrain morphology.
(vi) The system of socio-economic data, environmental data, data about weather disasters, floods, data of the loss due to heavy rains, floods in 8 local provinces of SCR.
- Other products (if applicable):
Documentation, data supporting for Ph.D. thesis and Nguyen Thi Duong Ha has defended her thesis at Institute of Geography by November 25, 2013.

The NCHMF, The RHMO of SCR, the provincial Hydro-Meteorological Stations (documentation for forecasting heavy rain, for heavy rain forecast model).
+ Steering Committee for Flood and Storm Control of provinces in the SCR; Provincial Department of Natural Resources (working document for heavy rain forecasting, flood…