2014-08-02 (Flight #2052) |
Aircraft Flight SummaryDate: 2014-08-02 |
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Flight Mission Details
This was P-3B fourteenth flight out of Bloomfield Municipal Airport, Colorado. The aircraft took measurements over the six D-AQ sites: Fort Collins/site-1, Platteville/site-2, Golden NREL/site-3, BAO Tower/site-4, Denver/La Casa/site-5, and Chatfield Park/site-6.
Key instruments on P-3B include:
1. LARGE (Langley Aerosol Research GroupE): aerosols.
2. PDS (Project Data System): base meteorological and navigational measurements.
3. TD LIF: NO2, HNO3, PNs, ANs;
4. DLH (Diode Laser Hygrometer), H20.
5. DACOM (Differential Absorption CO Measurement): CO, CH4
6. DFGAS (Difference Frequency Generation Absorption Spectrometer): CH20
7. Chemiluminescence (NCAR 4-channel Chemiluminescence Instrument): O3, NO2, NO, NOy
8. PTR-MS (Proton-Transfer-Reaction Mass Spectrometer): non-methane hydrocarbons.
9. AVOCET (Atmospheric Vertical Observations of CO2 in the Earth's Troposphere): CO2.
10. CAR (Cloud Absorption Radiometer): scattered light and surface radiance that is reflected off of surfaces.
11. Fast Ethane Spectrometer: ethane, methane.
Flight Path, Timing, and Measurements
Approximate time in UTC (Colorado, -6 hours). Activities during CAR flight 2052 on August 2, 2014 out of Bloomfield Municipal Airport. Observations by CAR operator/PI, Charles Gatebe accompanied by Kurt Rush, CAR engineer.
19:12 -- preflight checks.
19:15 -- P-3 door closed. CAR instrument on.
19:19 -- aircraft engines on.
19:24 -- start taxiing.
19:29 -- CANS problems.
19:30 -- take off. CAR door opened to begin data collection for science.
19:31 -- CAR door fully open.
19:32 -- CAR in science mode scanning in the starboard.
19:34 -- clear sky.
19:37 -- clear sky, but clouds on the mountain seen at a distant.
19:43 -- missed approach at the Christman Air Field, Fort Collins. Spiral up begins.
19:46 -- clear sky over Fort Collins.
19:55 -- pollution not a lot.
19:57 -- end of the spiral. Heading towards Platteville. Will conduct spiral down over Greely. Air Traffic Controller cancelled spiral down over Platteville.
20:03 -- Fair weather Cu starting to form.
20:09 -- spiral down over Greely begins.
20:13 -- clear sky over the site, but fair weather Cu towards the horizon. Filter wheel channels stable.
20:23 -- missed approach at the Weld County airport, Greeley.
20:26 -- heading towards Platteville on the way to Golden.
20:36 -- La Casa. Took some pictures. Generally clear, but some scattered Cu observed.
20:39 -- spiral up over Golden. Balloon launched. Clear sky over the site, but clouds forming over the mountains.
20:43 -- picture taken showing high clouds.
20:50 -- end of spiral over Golden. Heading toward the BAO tower.
20:55 -- spiral down over the BAO tower. Some fair weather cu developing.
21:07 -- Ozone = 75 ppb at the bottom of the spiral.
21:09 -- missed approach at the Parkland airport, BAO tower.
21:15 -- spiral over La Casa. Scattered clouds, but clear over Denver downtown.
21:29 -- end of spiral up.
21:31 -- Filter wheel channels noisy. Reset the cryopump (several times; the first time was around 21:27).
21:34 -- Filter wheel channels noisy.
21:35 -- spiral down over Chatfield. Filter wheel channels noisy.
21:38 -- lots of scattered Cu over Chatfield.
21:45 -- end of spiral down.
21:47 -- still in the spiral down, but coming to the end. Heading towards Golden.
21:50 -- Balloon launch.
21:51 -- CAR parked and powered off in preparation for landing.
21:55 -- landing.
22:01 -- stop taxiing.
22:02 -- aircraft engines off.
