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Tactical Decision Aids In use at Fort Worth CWSU. James Ott. Tactical Decision Aids. Define FTW ARTCC Description of FTW ARTCC Types of TDAs used at FTW CWSU TRACON ARTCC Forecaster produced Automated by PACE Forecast Tools. Tactical Decision Aids Defined.
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Tactical Decision Aids • Define • FTW ARTCC • Description of FTW ARTCC • Types of TDAs used at FTW CWSU • TRACON • ARTCC • Forecaster produced • Automated by PACE • Forecast Tools
Tactical Decision AidsDefined • Graphical forecast of elements useful to FAA Traffic Management, supervisors and dispatchers • Timeline format • Forecast Elements can be categorical or probabilistic
Tactical Decision Aids (TDA) • Define • ZFW ARTCC • Description of ZFW airspace • Types of TDAs used at FTW CWSU • TRACON • ARTCC • Forecaster produced • Automated • Forecast Tools
Fort Worth ARTCC Major air traffic corridors/routes: East-west traffic across the southern US DFW arrivals/departures North-south traffic from IAH-ORD and IAH-DEN as well as others
FTW ARTCC Arrival Cornerposts DFW TRACON with Air traffic UKW Bowie BYP Bonham CQY Cedar Creek JENGlenrose
DFW Arrival/Departure Routes DFW TRACON with Air traffic Arrival Depart Arrival 110-130 140-170 110-130 Depart Depart 140-170 140-170 Arrival Arrival 110-130 110-130 Depart 140-170
Tactical Decision Aids (TDA) • Define • FTW ARTCC • Description of FTW ARTCC • Types of TDAs used at FTW CWSU • TRACON • ARTCC • Forecaster produced • Automated by PACE • Forecast Tools
Types of TDAs • DFW TRACON (in use since late 90’s) • Ceilings and visibilities • Wind - north or south flow or crosswind • Precipitation type/coverage • Timeline forecast through 9 hours • Updated every 3-6 hours
Types of TDAs • ARTCC Arrival and departure gate sectors (UKW, BYP ,CQY, JEN) • TS coverage • Timeline forecast through 6 hours • Updated every 3-6 hours
Elements to TRACON TDA • Ceilings/Visibilities • VFR >= 3000 ft; > 5 mi • MVFR 1000 -3000 ft; 3 – 5 mi • IFR 500 – 1000 ft; 1 – 3 mi • LIFR < 500 ft ; < 1 mi • Winds • North flow • South flow • Crosswinds 20-25 kts • Precipitation • Type • TS SH RA SN etc. • Probability/Coverage • Few – VC - Prob30/40 - Tempo
TRACON TDA Forecast Tools • Current METARs • Current TAF • Crosswind calculations • Via FTW CWSU web site • Precipitation forecast • Various sources • ITWS, PACE, NCWF6, Auto Nowcaster
Ex. 30025G40
Tactical Decision Aids (TDA) • Define • ZFW ARTCC • Airspace 101 (short version) • Types of TDAs used at FTW CWSU • TRACON • ARTCC • Forecaster produced • Automated by PACE • Forecast Tools
Elements to Arrival/Departure Gate Sector TDA (Forecaster) • Precipitation (TS) Coverage • Open - < 30% • Marginal - 30-70% • Impacted >70%
Data from PACE For continuous updates go to http://???.???.noaa.gov
Tactical Decision Aids (TDA) • Define • ZFW ARTCC • Description of ZFW airspace • Types of TDAs used at FTW CWSU • TRACON • ARTCC • Forecaster produced • Automated • Forecast Tools
Arrival/Departure Gate Sector TDA Forecast Tools • Convective Forecasting • NEXRAD • Auto Nowcaster – Thunderstorm initiation tool • TCWF – Terminal Convective Weather Forecast (ITWS) • 0-1 hour • PACE - Prototype Aviation Collaborative Effort • 0-2 hours • NCWF6 - National Convective Weather Forecast • 0-6 hours • CCFP – Collaborate Convective Forecast Product • 0-6 hours
WARP NEXRAD Mosaic • Advantages • Primary display available to ATC • Displays TS and jet routes/sectors • Animation • Disadvantages • No calculations or forecast other than CCFP • Closed system- • Cannot import products from other sources
Auto Nowcaster • Displays Convective Threat • 1 hour in advance • User input required from local WFO • Type of airmass regime • Cold front, Dryline, No TS, Dvlpg Ts, Stnry Fnt, Advect, Mxd • boundaries, regions, polygons • Nudge up/down
ITWS(Integrated Terminal Weather System) • Integrates several radar systems Six radars (1) NEXRAD (2) TDWRs (3) ASR-9s • TCWF – (Terminal Convective Weather Forecast) • 0 – 1 hour location of precipitation • VIL intensity
PACE(Prototype Aviation Collaborative Effort) • Displays current significant thunderstorm activity • Significant thunderstorms • VIL intensity • Lightning • Echo tops > 15,000 ft. • Incorporates NCWF2 forecast (0-2 hr.)
PACE(Prototype Aviation Collaborative Effort) • Plan View • TS forecast 30, 60, 90 and 120 min. • Updated every 5 minutes • Timeline display • 0-2 hr. at 5 min. intervals • Threat boxes indicate TS within 10 nm. • Major jet routes • Arrival and departure gates • Algorithms currrently very simplistic
NCWF-6(National Convective Weather Forecast-6 hours) • Displays current and forecast significant thunderstorm activity • Significant thunderstorms • VIL intensity • Lightning • Echo tops > 15000 ft. • Displays forecast of activity (0-6hrs.) • Threat probability