Emerging infectious diseases are increasingly a global and regional security issue with the capacity to have serious human health and economic impacts, and to harm U.S. interests abroad by destabilizing key institutions. Through the integration of NASA Earth Science results into the DoD-Global Emerging Infectious Surveillance & Response System (DoD-GEIS), this proposal aims at complementing GEIS with a systematic method of monitoring and forecasting environmental and climatic risk factors associated with emerging infectious diseases, including hemorrhagic fever zoonoses (filovirus and Rift Valley fever.) This proposal builds on an innovative eco-climatic monitoring algorithm that quantitatively assesses environmental and climatic risk factors that could lead to the occurrence of a vector-borne disease and provides risk maps that highlight areas where targeted surveillance should be implemented. We aim to provide monthly environmental risk maps for zoonoses, with focus on Ebola, Marburg filoviruses and Rift Valley fever in Africa by integrating information from MODIS on Terra and Aqua, TRMM data, SRTM, and as well as simulated products from NPP and GPM upcoming missions. GEIS is a unique resource for global affairs and the only U.S. entity devoted to infectious disease globally that has broad-based laboratory capacities in overseas settings. By supplementing DoD-GEIS with NASA-derived environmental risk maps, we seek to support and enhance: 1) GEIS efforts toward improving surveillance systems as crucial to preventing, detecting and containing emerging infectious that threaten U.S. military personnel, their families, and national security, and 2) GEIS overseas military research units with their service to host country counterparts, World Health Organization, and the Food and Agriculture Organization of the United Nations to improve local epidemiological capabilities. We seek to support the NASA Public Health program in their focus areas of infectious disease, and Homeland Security program for preparedness, response, and mitigation