TReC Target Area Selection conference - Confirmation of actions Conference time: 200311201600 ============================================================================== Case Identifier: trec_016 verification region: Northern Europe sub region: centre 45N 5W verification time: 2003112312 (Sunday) observation time: 2003112118 (Friday) priority: low No new sensitive area calculations. Summary: confirm yesterdays 48-hour warnings Selected target area: General area 25-55N,10-30W Request for obs: 24-hour confirmation for ASAP ships, rapid-scan winds in above area 24-hour confirmation for ASAP ship (OXVH2) leaving Greenland 24-hour confirmation for radiosonde ascents from Azores, Canaries, Madeira No request for G-IV or Falcon ============================================================================== Case Identifier: trec_017 verification region: Northern Europe sub region: centre 62N 5W verification time: 2003112412 (Monday) observation time: 2003112218 (Saturday) priority: low Sensitive area calculations from Met Office, ECMWF (dry TE SVs), Meteo-France (VT 0600), NCEP. Summary: Met Office max over Newfoundland and E Labrador. ECMWF max Labrador and W past Gt Lakes. Meteo-France sensitive area restricted to smaller region of E Labrador. Latest Met Office using 0 UT ensemble agrees more with ECMWF. Met Office and ECMWF do have some sensitivity near S tip Greenland, but this is not main area. NCEP sensitivities for obs 0 UT on 23rd also have secondary max S Greenland. Given overlap of sensitive areas and same observing times between trec_17 and trec_18, no observation requests will be made under this case number, but see below for trec_18. Selected target area: (see trec_18) Request for obs: (see trec_18) ============================================================================== Case Identifier: trec_018 verification region: Northern Europe sub region: centre 45N 5W verification time: 2003112512 (Tuesday) observation time: 2003112218 (Saturday) priority: low Sensitive area calculations from Met Office, ECMWF, NCEP, NRL. Summary: All ECMWF methods hae max in E Canada, N of Gt Lakes and extending towards (but not reaching) E Labrador coast. Met Office max mainly over Newfoundland and S-wards. NCEP max for obs 12 on 22nd agrees; sim for 00 on 23rd. Latest Met Office sensitivities using 00 UT EPS move max NW over E Canada, but with extension to S tip Greenland. Subjective interest also noted for obs nr Greenland for this development. G-IV can cover oceanic/Greenland ETKF sensitive area (null test for SV sensitivities), Citation may reach part of Canadian land sensitive areas. Selected target area: General area 45-65N,35-60W Request for obs: 48-hour warning for ASAP ships, AMDAR 48-hour warning for radiosonde ascents from Canada, Greenland 48-hour warning for G-IV flight (guide: St Johns -> 62N,40W -> 62N50W -> St Johns) 48-hour warning for Citation (Bangor - St Johns, via Montreal drop zone) No request for Falcon Outlook: Met Office (0 UT data), NCEP and NRL suggest more sensitivity mid-Atlantic on 23rd for this case. NRL sensitivity centred E Canada, but extending E into Atlantic. Possible flights from some/all aircraft Sunday 23rd ============================================================================== Conference chaired by: David Richardson Participants: Doug Mansfield, Richard Dumelow (Met Office), Steve Stringer (EUCOS), Jean Ruffie (Meteo France), Lacey Holland (NCEP), Martin Leutbecher (ECMWF), Andreas Doernbrack (DLR), Haraldur Olafsson (Iceland), Mel Shapiro (NOAA), Rolf Langland (NRL), John Murray (NASA) ============================================================================== Next conference: 20031121 0900 UTC ==============================================================================