25 March 2003 IHOP Workshop Andreas Behrendt

IHOP IntercomparisonsSelection of Case Studies & First Quicklooks

Andreas Behrendt, Thorsten Schaberl, Hans-Stefan Bauer, Volker Wulfmeyer,Cyrille Flamant, Christoph Kiemle

WALES

IHOP Intercomparison Table

Airborne-airborne intercomparisons

Airborne-ground intercomparisons

First Quicklooks

Conclusions & Outlook

Contents

25 March 2003 IHOP Workshop Andreas Behrendt

Water Vapor Lidar Experiment in Space (WALES)

European Space Agency Earth Explorer Mission

in Phase A

25 March 2003 IHOP Workshop Andreas Behrendt

Use unique IHOP_2002 data set:

Task1: Intercomparisons and collection of data

Task2: Organization of water vapor and background data

Task3: Case studies

Task4: Input data for end-to-end performance model

Task5: Conclusion and recommendations

WALES Verification

25 March 2003 IHOP Workshop Andreas Behrendt

Airborne DIAL systems

DLR Falcon - H2O-DIAL

NASA DC8 - LASE

NRL P3 - LEANDREII

Ground-based Raman lidar systems

SRL

CARL

Lidar Instruments

25 March 2003 IHOP Workshop Andreas Behrendt

1. Collection of flight times– Mission reports– Quick looks

2. Calculating instrument distances– Ignore horizontal distances > 20 km

3. Including instrument operation times and mode– Mission reports– Communication with PIs

4. Taking data quality and weather conditions into account1. Communication with PIs2. Quick looks

Selection of Case Studies

Intercomparison days

25 March 2003 IHOP Workshop Andreas Behrendt

Aircraft Flight TimesDay Mission Flight # Take off Landing Fl. Time Flight # Take off Landing Fl. Time Flight # Take off Landing Fl. Time

13.05.2002 BLH14.05.2002 ---15.05.2002 CI

BoreCI

17.05.2002 Test 1 21:59 00:29 2:3018.05.2002 ---19.05.2002 BLH 2 16:04 19:24 3:20 1 15:58 20:56 4:5820.05.2002 BLH 3 16:53 20:50 3:5721.05.2002 BLH 4 19:57 23:17 3:20 2 17:53 23:16 5:2322.05.2002 CI 3 19:12 01:20 6:0823.05.2002 CI 4 16:51 19:14 2:23 1 17:13 19:40 2:2724.05.2002 CI 5 18:28 22:05 3:37 5 17:35 22:38 5:03 2 17:17 22:44 5:2725.05.2002 BLH 6 16:58 20:53 3:5526.05.2002 ---

QPFBLH 6 16:14 21:57 5:43CI

28.05.2002 Test 7 20:30 23:30 3:0029.05.2002 BLH 8 16:30 21:00 4:30 7 16:10 22:28 6:1830.05.2002 BLH 3 17:22 22:35 5:1331.05.2002 BLH 9 16:30 21:00 4:3001.06.2002 ---

E-LLJ 10 00:45 05:42 4:57 4 02:24 06:56 4:32CI 8 18:47 23:40 4:53

11 10:42 13:34 2:5212 14:40 17:20 2:40

CI 13 18:30 22:28 3:58 9 15:54 0:07 8:13 5 17:40 22:44 5:04BoreCI

05.06.2002 ---14 16:35 19:40 3:0515 21:05 00:09 3:04

BLH 16 16:10 20:25 4:15 10 17:58 21:55 3:57E-LLJ 17 23:30 01:55 2:25 11 23:27 04:45 5:18

08.06.2002MLLJ 18 12:10 15:22 3:12

CI 12 16:48 00:04 7:1610.06.2002 CI 13 16:55 00:11 7:1611.06.2002 CI 14 16:13 00:16 8:03 7 16:40 21:57 5:1712.06.2002 CI 15 16:50 23:04 6:1413.06.2002 ---

19 11:00 14:16 3:1620 16:03 18:20 2:17

15.06.2002 CI 21 17:29 21:00 3:31 17 15:50 22:55 7:0516.06.2002 BLH 18 15:26 20:57 5:3117.06.2002 BLH18.06.2002 CI 19 16:28 00:37 8:0919.06.2002 CI 20 17:51 23:42 5:51

E-LLJ 21 00:56 07:10 6:14BLH

21.06.2002 BLE 22 10:20 19:36 9:1622.06.2002 BLH 23 16:21 20:34 4:1323.06.2002 ---24.06.2002 ---

E-LLJBLE 24 16:20 21:46 5:26

1. Priority DLR + P-3 + DC-8 are at the same time in the air2. Priority only two aircrafts at the same time in the air

09.06.2002

BLE

6 13:29 21:15 7:46

16

BLH

8 13:07 21:26 8:19

M-LLJ

10:53 18:28 7:35

20.06.2002

03.06.2002

04.06.2002

16.05.2002

27.05.2002

02.06.2002

06.06.2002

07.06.2002

25.06.2002

No flight operationsNo flight operations

DLR Falcon (17.5.-14.6.2002) P-3 (17.5.-25.6.2002)

14.06.2002

No flight operations

No flight operations

No flight operations

No flight operations

No flight operations

No flight operations

NASA DC-8 (25.5.-13.6.2002)

25 March 2003 IHOP Workshop Andreas Behrendt

Aircraft – Aircraft Distances

25 March 2003 IHOP Workshop Andreas Behrendt

Aircraft – Aircraft Distances

Day Mission Falcon - P3 Falcon - DC8 P3 - DC819.05.2002 BLH 16:04-16:42 (<10km)21.05.2002 BLH 21:13/23:10 (5km)24.05.2002 CI 19:04/19:54/20:29 (<10km) 18:49/20:03/21:10 (<5km) 21:40 (<10km); 20:09 (<20km)29.05.2002 BLH 19:24 (5km); 18:16/20:31 (10km)

CI 20:16/20:46 (<20km) 21:54 (<10km) 19:30/21:35 (<10km)BLH 19:40 (<10km)

E-LLJ 23:32-00:30 (<5km)MLLJ 14:20 (<2km) 17:55/18:55/20:10 (<20km)

11.06.2002 CI 16:16 (<5km); 17:12/19:15 (<20km)11:00-14:53 (0-50km) 13:38/14:02/14:45/14:55 (<15km)16:26-18:20 (0-25km) 16:27/17:36 (<10km)

15.06.2002 CI 20:13 (<5km); 18:54/19:24 (20km)

1. Priority comparison may be possible during a whole time period2. Priority some comparisons may be possible during some time points with small distances between aircrafts3. Priority only individual comparisons might be possible

BLE13:36/15:10/16:28/17:36 (<10km)

14:02/14:44/16:11 (<20km)

09.06.2002

07.06.2002

14.06.2002

03.06.2002

25 March 2003 IHOP Workshop Andreas Behrendt

• Lidar operation times

– When were H2O measurements done?

• Lidar operation mode

– Was LEANDREII pointing sideway?

• Weather conditions

– No H2O data due to clouds?

2nd step

25 March 2003 IHOP Workshop Andreas Behrendt

Airborne-Airborne Intercomparison Table

Day Mission Falcon - P3 Falcon - DC8 P3 - DC819.05.2002 BLH 16:04-16:42 F 16:30-16:39 (<10km)21.05.2002 BLH 21:13 F /23:10 P (5km)24.05.2002 CI 19:04/19:54/20:29 (<10km) # 18:49 C/20:03/21:10 (<5km) 21:40 (<10km); 20:09 (<20km) #29.05.2002 BLH 19:24 (5km); 18:16 F /20:31 (10km)

E-LLJ 03:30 (<2km)CI 20:16/20:46 (<20km) # 21:54 (<10km) F 19:30/21:35 (<10km) #

BLH 19:40 (<10km)E-LLJ 23:32-00:30 F 23:55-00:16 (<5km) (with gaps)MLLJ 14:20 (<2km) 17:55/18:55/20:10 (<20km) #

11.06.2002 CI 16:16 (<5km); 17:12/19:15 (<20km) #11:00-14:53 (0-50km) # 13:38 F/14:02 C/14:45/14:55 (<15km)16:26-18:20 (0-25km) # 16:27 F /17:36 (<10km)

15.06.2002 CI 20:13 (<5km); 18:54/19:24 (20km) #

CDFP#

1. Priority2. Priority3. Priority

BLE13:36/15:10/16:28/17:36 (<10km)

14:02/14:44/16:11 (<20km) #

02.06.2002

09.06.2002

07.06.2002

14.06.2002

03.06.2002

intercomparison may be possible during a time periodsome intercomparisons may be possible for several times with small distances between the aircraftsonly one intercomparison might be possible

no water vapor data from the DIAL system on board of the P3 ("Leandre")

no water vapor data from the DIAL systems due to clouds

Leandre was pointing sideway

no water vapor data from the DIAL system on board of the DC8no water vapor data from the DIAL system on board of the Falcon

25 March 2003 IHOP Workshop Andreas Behrendt

Day Mission Falcon - P3 Falcon - DC8 P3 - DC819.05.2002 BLH 16:30-16:39 (<10km)24.05.2002 CI 20:03/21:10 (<5km)29.05.2002 BLH 19:24 (5km); 20:31 (10km)

E-LLJ 03:30 (<2km)BLH 19:40 (<10km)

E-LLJ 23:55-00:16 (<5km) (with gaps)MLLJ 14:20 (<2km)

14:45/14:55 (<15km)17:36 (<10km)

1. Priority2. Priority3. Priority

intercomparison may be possible during a time periodsome intercomparisons may be possible for several times with small distances between the aircraftsonly one intercomparison might be possible

02.06.2002

09.06.2002

07.06.2002

14.06.2002 BLE

Airborne-Airborne Intercomparison Table

7 profiles No directcomparisons

possible.

2 formation flights+ 3 profiles

25 March 2003 IHOP Workshop Andreas Behrendt

Airborne/Ground-Based Intercomparisons

SRL site

25 March 2003 IHOP Workshop Andreas Behrendt

Two aircrafts: First priority

29.05.02 17:11 – 20:39 UTC (DLR DIAL and LEANDREII against SRL)

03.06.02 18:52 – 21:32 UTC (DLR DIAL and LASE against SRL)

07.06.02 16:56 – 19:41 UTC (DLR DIAL and LEANDREII against SRL)

09.06.02 12:55 – 20:31 UTC (DLR DIAL and LASE against SRL)

14.06.02 11:59 – 18:49 UTC (DLR DIAL and LASE against SRL)

One aircraft: Second priority:

25.05.02 17:50/18:15/18:49 UTC (DLR DIAL against SRL)

27.05.02 17:10/17:16/19:49 UTC (LEANDREII against CARL)

02.06.02 02:47/02:58/06:21 UTC (LASE against CARL)

11.06.02 17:09/18:13/19:13/20:08 UTC (LASE against SRL)

Airborne/Ground-Based Intercomparisons

Many profiles for SRLand two aircrafts.

25 March 2003 IHOP Workshop Andreas Behrendt

First Quicklook: 7/8 June 2002

LeandreII/DLR-DIAL Formation Flight

25 March 2003 IHOP Workshop Andreas Behrendt

First Quicklook: 7/8 June 2002

LeandreII/DLR-DIAL Formation Flight

25 March 2003 IHOP Workshop Andreas Behrendt

23:53:34 23:57:36 00:01:48 00:05:50 00:09:52 00:13:56 00:17:58Time, UTC

0

0.5

1.

1.5

2.

2.5

3.

3.5

z,mk

a.s.

l.

DLR- FALCON , 020607

23:53:34 23:57:36 00:01:48 00:05:50 00:09:52 00:13:56 00:17:58Time, UTC

0

0.5

1.

1.5

2.

2.5

3.

3.5

z,mk

a.s.

l.LEANDREII , 020607

00.51.1.52.2.53.3.54.4.55.5.56.6.57.7.58.8.59.9.510.10.511.11.512.

MixingRatio,g/kg

P3-

25 March 2003 IHOP Workshop Andreas Behrendt

DIAL/DIAL formation flight comparisons:

- Falcon/P-3: 19 May (~ 9 minutes)

and 07 June (~ 10 minutes)

DIAL/DIAL profile/profile:

- no P-3/DC-8

- Falcon/DC-8: 7 profiles

- Falcon/P-3: 3 additional profiles

DIAL/ground-based SRL: many profiles available

DIAL/ground-based CARL:

- P-3 and DC-8: max. 3 profiles each on 27.5. and 2.6., resp.

DIAL/dropsondes, DIAL/AERI ???

Conclusions

25 March 2003 IHOP Workshop Andreas Behrendt

Several comparisons of DIAL systems available

to investigate systematic errors

Large amount of data available to specify noise

errors and the effects of atmospheric

inhomogeneities for WALES

Cases selected,

data intercomparison ongoing!

Outlook

25 March 2003 IHOP Workshop Andreas Behrendt

25 March 2003 IHOP Workshop Andreas Behrendt

• 19 May 2002:DLR DIAL/LEANDREII formation flight comparisonBLH day for task 4 studies.

• 24 May 2002:DLR DIAL/LASE comparisonsCI day for task 4 studies.

• 29 May 2002:DLR DIAL/LEANDREII intercomparison data points. Homestead intercomparison day (DLR DIAL/SRL and LEANDREII/SRL). BLH day for task 4 studies.

• 3 June 2002:Spare day for data analysis.

• 7/8 June 2002:DLR DIAL/LEANDREII formation flight. E-LLJ day for studies within task 4.

• 9 June 2002:Spare day for data analysis.

• 14 June 2002:DLR DIAL/LASE comparisons. Homestead intercomparisons (DLR DIAL/SRL, LASE/SRL)BLE day for task 4 studies

All Possible Intercomparisons: