Flight Report September 11, 2014 Summary

Transcription

1 Flight Report September 11, 2014 Summary 1. HALO Flight Report AC Flight Strategy Weather Conditions Before the Flight Conditions During the Flight... 4

2 1. HALO Flight Report AC Flight Strategy In the September 11, 2014 occurred the third HALO flight in ACRIDICON-CHUVA campaign. The aircraft to off at 14:30:39 UTC (10:30:39 Local Time) from Manaus Airport and landing at 20:25:19 UTC (16:25:19 Local Time) with total duration of 5 hours and 55 minutes. In the first part of flight the aircraft was directly toward centersouth of Roraima state, where done several flights in different levels until 7,000 ft. During the return to Manaus the aircraft reached 11,000 ft. and done some measurements in the southwest of Rondônia state. The Fig.1.1 shows the realized flight path. Figure Flight path of HALO aircraft in September 11, The green circle represents range rings of distance from Manaus and Boa Vista radar. Source: 2

3 1.2 Weather Conditions Before the Flight The Fig. 1.2 shows the IR image with the (blue line) planned flight path plotted. The mostly clouds was weaker local storms before the Halo aircraft take off (14:30 UTC), with no precipitation related. We can see just deep clouds in the northwest of Amazon region, which not affected the HALO flight path. Also some fire spots (red dots) can be observed in the south and east of that region. Figure Weather conditions before (1 hour before) the AC09 Halo flight at 13:30 UTC (09:30 Local Time). It is showed the IR GOES-13 images (for one hour before), fire spots (for the day, red dots) and the green circles are de radar range (Boa vista, Manaus and Porto Velho). The blue line shows the flight path planned. Source: The Fig.1.3 shows the radiosonde for Ponta Pelada site at 12 UTC (1 hour before the flight). It is suggested a dry environmental between 800 and 200 mb. The CAPE and CINE had value of 472 J/Kg and 34 J/Kg, respectively, which is higher than last day. In low levels the wind are predominantly from east and southeast, in contract between mb the wind is from west/southwest. 3

4 Figure Ponta Pelada radiosonde of September 11, 2014 at 12 UTC. Source: CHUVA/GoAmazon. 1.3 Conditions During the Flight At departure time, no precipitation was observed neither deep clouds close to Manaus airport (Fig. 1.4). At 17:06 UTC where the HALO aircraft reached the Boa Vista radar some dbz was observed. During the Landing some small clouds occurred closet Manaus airport (not showed). 4

5 Figure 1.4- Weather conditions (from satellite image, fires spots and precipitation during the first part of HALO flight. Source: 5

6 The Fig. 1.5 shows images in visible channel from GOES-13 since 13 until 20 UTC. Cirrus clouds are evident since 14:30 UTC (time of flight) covering the Amazon state and some deep clouds are starting in the west of Amazon region. At 18 UTC (12 pm in Local Time) some local convection appeared in the west of Manaus, and just after 19 UTC we can see some small storm occurring close to Manaus. Figure Visible image from GOES-13 satellite at 13, 13:30, 14:00, 14:30, 15, 16, 16:30, 18, and 20 UTC in September 11,

7 The Fig. 1.6 shows the reflectivity (dbz) from Manaus radar since before the flight 19:24 UTC until 1 hour later 21:12 UTC. During the day small precipitation cells was observed moving from east to west. Before the flight as well as after those cell was observed, in the majority was formed close in Manaus. The Fig. 1.7 shows the picture to from aircraft evidencing the existence of weaker clouds. Figure Reflectivity (dbz) from Manaus radar from 19:24 to 2112 UTC in September 11,

8 Figure Photo to from HALO aircraft in September 11, Courtesy from Micael Cecchini. 8

9 Flight Summary: HALO-Campaign ACRIDICON-CHUVA Flight number: AC09 Date, base: (Thursday), SBEG Block/TO/LDG/Block/FH: 1420/1429/2020/2026Z /6:06 Mission type: Cloud Profiling Flight pattern: Official pattern #7. Flight to Boa Vista VOR (BVI), cloud profiling S of ATF, outflow sampling S of ARVUM, return to SBEG Participants: Aircrew: Pilot: Michael Grossrubatscher Co-Pilot: Steffen Gemsa Technician: Thomas Lederer Scientists: Meinrat Andreae (Mission PI), Micael Cecchini, Florian Ewald, Mira Krüger, Sergej Molleker Observer: Ten. Fialho Cloud Profiling 50nm around BVI Btw FL050 and FL390

10 Instrument status: Radiation EAGLE/HAWK: HAI: minidoas: SMART: SNOOPY: PMS CAS-DPOL: CCP: MTP: NIXE-CAPS: PHIPS: PCASP-100X: PIP: SID-3: UHSAS-A: Gas ALABAMA-NOy: PAN-MS: AMTEX: TDS: Aerosol C-ToF-AMS: CVI-Rack: CCN: AMETYST: FINCH: BAHAMAS: SatCom: OK, nice cloud passages OK Instrument worked; Initial laptop problems (onboard network affected by (one of) laptops?, old network problem due to load balancing lack (?), general laptop/network trouble shooting procedure ); ground test: connect all flight laptops with all desktops open In the beginning problem with shutter, has been solved, due to network problem could not reach instrument. One of the computers was not running. Other components went smoothly. It should be specified on the instrument checklist what should be done in case the instrument cannot be reached remotely. Probably Ok, temperature problems Not operating n/op n/op n/op Thermodenuders were not switched on, otherwise. DMAs. Nothing suspicious Time shift +9.5 seconds Some problems, worked fine until satellite image was uploaded, tomorrow no file transfer please!

11 Flight remarks: 0740L: very light cirrus, sunny 0830L: convection starting 1130Z (0930L): nice convection 1420Z: taxi 1429Z: takeoff, climb to FL 390; cloud base 3600 ; pileus on modest cu s; cloud tops to Z: moderately hazy BL; ~600 CN/cc 1449Z: low cu s; sometimes in streets, approaching large clear area 1456Z: FL390; approaching area of abundant stratus; passed over Balbina Reservoir 1501Z: begin descent to BL; large cu s to NW reach above FL400. Altostratus/cirrus: old outflows? 1515Z: highest tops at ~18,000 ; average tops at ~15, Z: hold at FL150; CN~600/cc 1522Z: descend to BL 1530Z: cloud base 3500 ; CN ~830/cc 1549Z: switch to CVI Level Time SAT MVD rem 3600 Cld base ~ ~10 CDP /cc; CVI-CPC ~14 CDP ~500; CN= ~20 Light rain Rain; 1632 HASI heat off rain Only ice; HASI heat on Mostly ice Some water; very light icing More water; columns, needles Mostly water; some large ice Water Only ice Z: end cloud profile, FL360; go to large cu outflow, heading Z: in outflow, on CVI 1558Z: in and out of outflow 1905Z: on HASI; -41 C 1912Z: leave this outflow, fly heading 210 to large outflow from Cb (picture) 1938Z: in outflow, CN to ~4000/cc; smoggy smell; static noise 1947Z: rt turn heading 240 to return into outflow 1954z: last outflow; descend; entering mixed layer at FL140; CN 550/cc 2011Z: Anti-ice off. Big shower to N 2020ZL Landing

12 Anvil outflow penetration at 1938Z:

13 Flight track

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16 Nowcast from CCAT-BRAMS

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