U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Mosquito and Fly Research: Gainesville, FL
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    CareersSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Southeast Area Gainesville, Florida Center for Medical, Agricultural and Veterinary Entomology Mosquito and Fly Research Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            ANYAMBA, ASAPH - Goddard Space Flight Centeritem
                                            Linthicum, Kenneth

                                                         - *Ken*item
                                            SMALL, JENNIFER - Goddard Space Flight Centeritem
                                            SWANEPOEL, R. - National Institute For Communicable Diseases (NICD)item
                                            Gibson, Sethitem
                                            PAK, EDWIN - Goddard Space Flight Centeritem
                                            FORMENTY, PIERRE - World Health Organization (WHO) - Switzerlanditem
                                            DE LA ROCQUE, STEPHANE - Empres
  Submitted to: Meeting Abstract
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 6/1/2009
                                    Publication  Date: 7/13/2009
                                    Citation: Anyamba, A., Linthicum, K., Small, J., Swanepoel, R., Britch, S.C., Pak, E., Formenty, P., De La Rocque, S. 2009. Mapping the Risk of Rift Valley fever re-emergence in Southern Africa using remote sensing data. Presented at the 2009 IEEE International Geoscience and Remote Sensing Symposium, Cape Town, and Africa.Interpretive Summary:
                                Technical Abstract: Rift Valley fever is a viral disease of animals and humans that occurs throughout sub-Saharan Africa, Egypt and the Arabian Peninsula. Outbreaks of the disease are episodic and closely linked to climate variability, especially widespread elevated rainfall that facilitates Rift Valley fever virus transmission by vector mosquitoes. Episodic outbreaks of the disease are closely linked to with interannual variability in rainfall associated with the El Niño/Southern Oscillation (ENSO). In this study utilize satellite-derived normalized difference vegetation index data and rainfall anomalies during the 2007-2008 period to drive an RVF risk model and map areas of likely RVF risk activity over the region. The model outputs are compared against RVF outbreak data. The results indicate that the RVF outbreak during this period was a result of above normal rainfall creating the ideal complex of ecological and habitats for the production of Rift Valley fever mosquito vectors associated with RVF and suggest that value of systematic satellite observations of the land biosphere in developing early warning systems for episodic disease outbreaks.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov