Transcript LEANDRE II/KA; LEANDRE II/P-3 (Weckwerth for Flamant)

Comparison of sideways LEANDRE 2
measurements with sounding,
airborne in situ
and DLR DIAL measurements
C. FLAMANT
IHOP intercomparison worshop
2-3 October 2003
Overview and objectives
LEANDRE 2 sideways measurements in PBL:
 19 June 2002 CI case
 compare average along and cross boundary L2 wvmr
retrievals with UWKA in situ measurements
 14 June 2002 BLE case
 compare 1st, 2nd and 3rd moment + PDF of L2 wvmr
retrievals with P-3 and UWKA in situ wvmr measurements
 compare 1st, 2nd and 3rd moment + PDF of L2 wvmr
retrievals with DLR DIAL wvmr retrievals
 compare 1st, 2nd and 3rd moment + PDF of L2 wvmr
retrievals with LES simulations
LEANDRE 2 nadir measurements (A. Behrendt):
• L2 Vs SRL (20 June 2002 ELLJ case)
• L2 Vs DLR DIAL (8 June 2002 ELLJ case)
CI mission 19 June 2002
LEANDRE 2 (sideway) and in situ measurements
Leg 1: across boundary comparison
P-3
UWKA
zoom
L2
P-3 flying at 600 m AGL /
UWKA flying at 250 m AGL
CI mission 19 June 2002
LEANDRE 2 (sideway) and in situ measurements
Leg 5: along boundary comparison
L2 (1.2-3.75 km)
L2
P3
UWKA
P-3 flying at 550 m AGL /
UWKA flying at 550 m AGL
L2 (3.75-5 km)
BLE mission 14 June 2002
LEG 22a (17h13-17h23 UTC)
NRL P-3: red
UWKA: green
DLR Falcon: blue
L2
NRL P-3: red / LEANDRE: black
UWKA: green / DLR DIAL: blue
WVMR (1250 m MSL)
DLR DIAL
PDF
DLR DIAL
LEANDRE 2
BLE mission 14 June 2002
LEG 22b (17h26-17h36 UTC)
LEANDRE 2
NRL P-3: red
UWKA: green
DLR Falcon: blue
L2
NRL P-3: red / LEANDRE: black
UWKA: green / DLR DIAL: blue
WVMR (1250 m MSL)
DLR DIAL
PDF
DLR DIAL
So far…
14 June 2002 BLE case:
 4 out of 22 legs have been analysed (16h42-17h36)
 Comparison of 1st moment of lidar (L2, DLR DIAL) and
in situ (P-3, UWKA) wvmr
 Comparison of 1st and 2nd moment of L2 and DLR DIAL
vvmr retrievals
Still ahead…
14 June 2002 BLE case:
 Analyse wvmr variability for the entire mission
 Compare 1st, 2nd and 3rd moment of L2 wvmr retrievals
with P-3 (1 Hz) and UWKA (1 and 25 Hz) in situ wvmr data
 Compare 1st, 2nd and 3rd moment of lidar (L2, DLR DIAL)
and in situ (P-3, UWKA) wvmr with LES simulations