HRD Flight Requirements for 2005

Operational needs – tasked by NHC

• Reconnaissance/Surface Winds

Research opportunities – tasked by HRD/NESDIS

• IFEX: Mature storm/Genesis/ Wind Fields at Landfall

• Ocean Winds (equal priority to above)• RAINEX (equal priority to above)

HRD Flight Requirements - P-3s(in order of priority)

Operational needs – tasked by NHC

• Synoptic Surveillance• Core Penetration Tests

Research opportunities – tasked by HRD

• IFEX: Saharan Air Layer• RAINEX• IFEX: Synoptic Environment of Mature Storm• IFEX: Synoptic Environment of Tropical

Cyclogenesis (interaction with NASA TCSP in East Pacific)

HRD Flight Requirements - G-IV(in order of priority)

Flight Pattern Criteria – P-3s

Operational• Figure-4 pattern• Leg lengths extended for surface wind

mapping

Research• 225 research flight hours for HRD• Patterns dependent on module• Flight patterns will be available in

Hurricane Field Program Plan

Operational•Targets defined as maximum forecasted DLM

wind field variance at obs time from GFS•All drops must be over open water and are generally

dropped at a resolution of 222 km•Flight tracks are limited to 8.5 h when plane

recovers in continental US, 8 h at St. Croix andBarbados, 7.5 h in Bermuda

•Missions commence at 1730 and 0530 UTC•Generally do not have clearance to overfly

Cuba, Hispaniola, or Central America

Research•45 research flight hours for HRD•Patterns dependent on module•Flight patterns will be available in Hurricane Field

Program Plan

Flight Pattern Criteria – G-IV