Constraints » History » Version 20
Version 19 (Redmine Admin, 08/31/2016 04:16 PM) → Version 20/44 (Redmine Admin, 08/31/2016 04:16 PM)
h1. Instrumental Constraints
||*WALES* | *HAMP Radar* | *HAMP Radiometer*| *SMART*** | *specMACS*| *Bahamas*||*A2D wind lidar*|*2micron wind lidar*|
|*Responsible People* |Responsible People
| Martin Wirth (DLR-IPA)
Andreas Fix (DLR-IPA)
Silke Groß (DLR-IPA)
Axel Amediek (DLR-IPA)
|Lutz Hirsch (MPI-H)
Friedhelm Jansen (MPI-H)
Martin Hagen (DLR-IPA)
Florian Ewald (DLR-IPA)
|Mario Mech (U Hamburg)
|Kevin Wolf (U Leipzig)
André Ehrlich (U Leipzig)
Manfred Wendisch (U Leipzig)
|Tobias Kölling (LMU-MIM)
Tobias Zinner (LMU-MIM)
Hans Grob (LMU-MIM)
Bernhard Mayer (LMU-MIM)
|Christian Mallaun (DLR-FX)
Martin Zöger (DLR-FX)
||Oliver Reitebuch (DLR-IPA)
Christian Lemmerz (DLR-IPA)
Engelbert Nagel (DLR-IPA)
Oliver Lux (DLR-IPA)
Uwe Marksteiner (DLR-IPA)
|Benjamin Witschas (DLR-IPA)
Stefan Rahm (DLR-IPA)
|
|Number of Operators|1-2|1-2|||1|0||1|1|
|Instrument Operation
| No operation below 6 km possible
| Operation between 6 and 13.7 km (lt 6 km saturation of the radar receiver,gt 13.7 km no ground-echo)
||* only daylight Operation
* avoid solar elevation<15°
* operation time: 730-16 UTC
|* only daylight Operation
* as high above clouds as possible
* swath in 1.5km: 0.9 km (spec Macs); 2.1 km (2D cam)
* swath in 5.0km: 3.0 km (spec Macs); 7.0 km (2D cam)
|* Reduced accuracy during dust and salt contamination by high aerosol load during low Level flights
* Reduced data quality in precipitation and clouds (water/ice in pressure tube)
||* no data 1.5 km below aircraft
* limited number of 16-18 range gates (vert. res. 0.3/0.6/1.2 km)
* to be addapted to science obj.
* first obs 45 min after take-off
* no operation< 5km (eye-safety)
|* obs after 15 min
* no data 500 m below aircraft|
|Flight Planning
Requirements
|Preferably straight legs
|Min FL 200 (6 km)
Max FL 450 (13.7 km)
|one clear sky flight
one dropsonde per flight
|straight legs (min. 5 min)
|Straight legs
|||dropsondes fom HALO beneficial for
profiles of temperature
and hor. wind vector||
|Clouds|* best performance in a distance of 2 km to cloud top
* no measurements in clouds
|||above clouds (min 500 ft)
|ideally no clouds above
|||avoid flying within or
1-2 km above cirrus clouds
|at high flight level or close to the aircraft are unfavorable an prevent wind profiles|
|Instrument Calibration
||cirles over the sea with 10° bank (15 min/circle) during 1-2 research flights (calm and rough sea)
|at ground, before each research flight (30 min), with liquid nitrogen
|* Radiation box (4x2min legs), clear sky above
* regular cal at ground (between flights), about 1h
||||* 1 double flight to Kangelussuaq needed for A2D cal over Greenland ice sheet
* scan-pattern if situation allows (retrieve hor. wind vector)
|at the beginning of the campaign: several min with vis to ground at constant FL (~FL300) to determine Installation position|
|Satellite Overpasses||Cloudsat, GPM||A-Train (AQUA/TERRA)|A-Train (AQUA/TERRA)|||ASCAT||
|Coordination with F.Falcon|Intercomparison with LNG (Leandre New Generation)| Intercomparison with RASTA 95 GHz cloud radar||||||||
||*WALES* | *HAMP Radar* | *HAMP Radiometer*| *SMART*** | *specMACS*| *Bahamas*||*A2D wind lidar*|*2micron wind lidar*|
|*Responsible People* |Responsible People
| Martin Wirth (DLR-IPA)
Andreas Fix (DLR-IPA)
Silke Groß (DLR-IPA)
Axel Amediek (DLR-IPA)
|Lutz Hirsch (MPI-H)
Friedhelm Jansen (MPI-H)
Martin Hagen (DLR-IPA)
Florian Ewald (DLR-IPA)
|Mario Mech (U Hamburg)
|Kevin Wolf (U Leipzig)
André Ehrlich (U Leipzig)
Manfred Wendisch (U Leipzig)
|Tobias Kölling (LMU-MIM)
Tobias Zinner (LMU-MIM)
Hans Grob (LMU-MIM)
Bernhard Mayer (LMU-MIM)
|Christian Mallaun (DLR-FX)
Martin Zöger (DLR-FX)
||Oliver Reitebuch (DLR-IPA)
Christian Lemmerz (DLR-IPA)
Engelbert Nagel (DLR-IPA)
Oliver Lux (DLR-IPA)
Uwe Marksteiner (DLR-IPA)
|Benjamin Witschas (DLR-IPA)
Stefan Rahm (DLR-IPA)
|
|Number of Operators|1-2|1-2|||1|0||1|1|
|Instrument Operation
| No operation below 6 km possible
| Operation between 6 and 13.7 km (lt 6 km saturation of the radar receiver,gt 13.7 km no ground-echo)
||* only daylight Operation
* avoid solar elevation<15°
* operation time: 730-16 UTC
|* only daylight Operation
* as high above clouds as possible
* swath in 1.5km: 0.9 km (spec Macs); 2.1 km (2D cam)
* swath in 5.0km: 3.0 km (spec Macs); 7.0 km (2D cam)
|* Reduced accuracy during dust and salt contamination by high aerosol load during low Level flights
* Reduced data quality in precipitation and clouds (water/ice in pressure tube)
||* no data 1.5 km below aircraft
* limited number of 16-18 range gates (vert. res. 0.3/0.6/1.2 km)
* to be addapted to science obj.
* first obs 45 min after take-off
* no operation< 5km (eye-safety)
|* obs after 15 min
* no data 500 m below aircraft|
|Flight Planning
Requirements
|Preferably straight legs
|Min FL 200 (6 km)
Max FL 450 (13.7 km)
|one clear sky flight
one dropsonde per flight
|straight legs (min. 5 min)
|Straight legs
|||dropsondes fom HALO beneficial for
profiles of temperature
and hor. wind vector||
|Clouds|* best performance in a distance of 2 km to cloud top
* no measurements in clouds
|||above clouds (min 500 ft)
|ideally no clouds above
|||avoid flying within or
1-2 km above cirrus clouds
|at high flight level or close to the aircraft are unfavorable an prevent wind profiles|
|Instrument Calibration
||cirles over the sea with 10° bank (15 min/circle) during 1-2 research flights (calm and rough sea)
|at ground, before each research flight (30 min), with liquid nitrogen
|* Radiation box (4x2min legs), clear sky above
* regular cal at ground (between flights), about 1h
||||* 1 double flight to Kangelussuaq needed for A2D cal over Greenland ice sheet
* scan-pattern if situation allows (retrieve hor. wind vector)
|at the beginning of the campaign: several min with vis to ground at constant FL (~FL300) to determine Installation position|
|Satellite Overpasses||Cloudsat, GPM||A-Train (AQUA/TERRA)|A-Train (AQUA/TERRA)|||ASCAT||
|Coordination with F.Falcon|Intercomparison with LNG (Leandre New Generation)| Intercomparison with RASTA 95 GHz cloud radar||||||||