GARP Atlantic Tropical Experiment (GATE) GATE Home Page. The Global Atmospheric Research Program's (GARP) Atlantic Tropical Experiment took place in the summer of 1974. Because of its enormous size (72 nations were involved) and scope, the GATE experiment was divided into a Central Program, which ensured that the central objective was met, and five sub-programs, whose primary objectives supported the central objective. Scientific Objectives The five sub-programs and their primary objectives were: Synoptic-Scale Subprogram, to describe the synoptic scale phenomena from West Africa to the western Atlantic Ocean, and from the troposphere through the lower stratosphere. Convection Subprogram, to document mesoscale convective systems and their interaction with their environment and other scales. Observations Intensive observing periods and primary and secondary aircraft missions were determined by a five-member Mission Selection Team, on the basis of anticipated weather conditions, platform status, and experiment objectives that needed to be met.
2009WY46B. North American Weather Consultants. NAWC_Ad. NAWCflyer. Results-of-the-south-african-cloud-seeding-experiments-using-hygroscopic-flares. Critical-assessment-of-hygroscopic-seeding-of-convective-clouds-for-rainfall-enhancement. Aircraft%20equipment. Chief%20Pilot. Science_Plan_CAIPEEX_P1. Precipitation Enhancement. RAP Achievements I. Precipitation Enhancement [Background] [Hygroscopic cloud seeding] [Rainfall enhancement assessment program in UAE] [Feasibility study Saudi Arabia] [Other projects] 1. Scientists in RAP continued to pursue research that strengthens the scientific basis of rainfall enhancement efforts. Figure I-1. Major efforts in FY04 have involved field projects in the United Arab Emirates (UAE) and Saudi Arabia, with other efforts being short-term or relatively small in scope.
The projects and assessments throughout the world have incorporated scientists and research groups in each country as well as U.S. university researchers. 2. Over the last several years, a hygroscopic flare test facility was developed and constructed to characterize the output of various hygroscopic flares in a controlled and reproducible environment. Figure I-2a. Figure I-2b. 2.2 Preliminary results of flare testing Figure I-2c. 3. Figure I-3. Figure I-4. Figure I-5. Figure I-6. 4. 4.1 Program overview [Top]