amma-uk cambridge 17th january 2006 chair: doug parker
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AMMA-UK Cambridge 17th January 2006
Chair: Doug Parker
1030 - 1045 Intro. and AMMA news (Doug Parker)
1045 - 1215 Short science talks1045 - Update on flux stations (Colin Lloyd)1055 - Land surface diagnostics during dry run (Phil Harris)1105 - Impacts of soil moisture on storm initiation (Chris Taylor)1115 - Atmospheric controls on mineral aerosols in the Saharan heat low (Richard Washington)1125 - The nocturnal boundary layer during August 2005 (Caroline Bain)1135 - Mineral dust and its influence on radiative fluxes at Hombori in April 2005 (Sally Lavender) 1145 - Lab leaf studies (Ally Lewis)1155 - Forecasting dry run of August 2005 (Doug Parker)1205 - Discussion
1215 - 1300 Lunch
Chair: Chris Taylor
1300 - 1400 Scientific planning1300 - OWP5 SCOUT small balloon campaign (John Pyle)1315 - OWP3 sodars, tethersonde and radiosondes (Doug Parker)1330 - OWP4 review of flight plans (Claire Reeves)1345 - new activities, e.g. ground-based chemistry in Benin (Julie Saxton)
1400 - 1430 Break out groups- Location of GCs- Radiosondes ? Thethersondes ?- Modelling ?- Other ?
1430 - 1500 Logistical discussions (1)1400 - Personnel schedules (Dave Stewart)1415 - Shipping, Accommodation etc (Dave Stewart)
1500 - 1530 Tea
Chair: Claire Reeves
1545 - 1700 Logistical discussions (2)1545 - H+S discussion (Colin Lloyd and Ruth Purvis)1620 - Visas, etc, (Ruth Purvis)1640 - Aircraft instrument fit (Ruth Purvis or Alan Woolley)1655 - AMMA Metadatabase (Claire Reeves)
1530 - 1545 Modelling1530 - Modelling strategy (Glenn Carver)
•I1.4 Surface-atmosphere: Land-atmosphere interactions (SOP2-a2 – Parker)
Week 29/5 5/6 12/6 19/6
26/6 3/7 10/7
17/7
24/7
31/7
7/8
14/8
21/8
28/8
4/9
11/9
SOP # SOP1 SOP2
Dates 1 June – 30 June 1 July – 15 Sept
Aircraft SOP 1-a SOP 2-a1 SOP 2-a2 SOP 2-a3
Dates 1 – 15 June 1 – 15 July 17 July – 25 August 1 – 15 Sept
BAe146 17 July – 21 August 22 – 28/8
ATR 1 – 15 June 1 – 15 July 25 July – 25 August
F-F20 1 – 15 June 1 – 15 July 25 July – 25 August 1 – 15 Sept
D-F20 1 – 15 July 31 July – 18 August
Geoph. 31 July – 18 August
Ground
Dano fluxes 1-15 June 23 July – 20 August
Dano r’sondes 1-15 June 23 July – 20 August
Driftsondes 15 July – 15 August (N’Djamena)
Ocean soundings
25 May – 7 July (R/V Atalante)
Oceanic mast 25 May – 7 July (R/V Atalante)
Constant vol. balloons
15 June – 15 July
Tethered balloon
17 July – 21 August
Sodar network 1 June – 21 August
MIT C-band radar
1 June – 15 August
Ronsard radar 15 June – 15 September
Bistatic radar 15 June – 15 September
Micro rain radar January-December
Lidar network M’bour, Niamey (ARM Mobile Facility), Banizoumbou, Djougou, Tamanrasset (TReSS)
Lidar ceilometer Niamey (ARM Mobile Facility), Djougou
Deposition fluxes
M’Bour, Cinzana, Banizoumbou
Aerosol characterisation
M’Bour, Cinzana, Banizoumbou, Tamanrasset, Djougou
Chem. instruments
SOP 2a1 & 2a2
Lightning network
SOP 1 & SOP 2
Microwave radiometer
January-December
UHF radar
GPS network Tombouctou, Ouagadougou and Tamale
RS network SOP southern, northern and western quadrilaterals
ARM Mobile Facility
January-December
Soil moisture radar
June-September
Ozone soundings
Cotonou
•I1.4 Surface-atmosphere: Land-atmosphere interactions (SOP2-a2 – Parker)
45 min ~ 270 km
45 min ~ 270 km
30 min
s~ 1 hour
500 ft
24 kft / FL240~ 400 hPa
75 min ~ 450 km
75 min ~ 450 km
30 min
s~ 1 hour
500 ft
24 kft / FL240~ 400 hPa
50 min ~ 300 km
50 min ~ 300 km
30 min
s ~ 50 min
500 ft
24 kft / FL240~ 400 hPa
•I1.4 Surface-atmosphere: Land-atmosphere interactions (SOP2-a2 – Parker)
J-1 J0 J+1 J+2
Daytime precipitation
Am pm am pm am Pm
0600 1200 1200 1200
1000 1600 1600 1600
J-1 J0 J+1 J+2
Evening / nocturnal
precipitation
Am pm am pm am Pm
1200 0700 1200 1200
1500 1000 1500 1500
J-1 J0 J+1 J+2
Evening / nocturnal
precipitation
pm1 pm2 am pm am Pm
1200 1800 1200 1200
1500 2100 1500 1500
Table 2.4.1: Sets of proposed take-off and landing times for I1.4 flights over soil moisture patterns ((i) above), beginning on day J0, conditional on the timing of different rainfall events prior to J0. Flights having taken place on J-2 or J-1 would be desirable. Local time assumed.
•I1.4 Surface-atmosphere: Land-atmosphere interactions (SOP2-a2 – Parker)
J0 J+1
Am pm am Pm
0400 0400 1200
1000 1000 1500
Table 2.4.2: Proposed take-off and landing times for I1.4 flights over vegetation patterns ((ii) above), beginning on day J0 and typically following rainfall on day J-1. Flights having taken place on J-2 or J-1 would be desirable. Local time assumed.
•I1.5: Vegetation emission surveys (SOP2-a2 – Reeves, Parker)
500 ft
6000ft ?
60 miles
Top of BL
•I1.6: Urban surveys (SOP2-a2 – Parker, Lewis)
•Coordinated MCS flights I2: Dynamics and chemistry of MCSs (SOP 2a1, SOP 2a2 – Mari, Flamant, Reeves, Hoeller)
•I3: Long range transport surveys (SOP2-a2 – Reeves, Mari, Schlager)
• I3.1: Impact of Mesoscale Convective Systems on TTL composition (MCS-TTL)
•I3: Long range transport surveys (SOP2-a2 – Reeves, Mari, Schlager)
•I3.2: Large-scale impacts of deep convection – long-range transport (LRT-TTL)
Ouaga Deployment Meeting 30-31 Jan at IPSL Paris
31st Joint flights with aircraft based in Niamey
IOP Flight funding
I1 I2 I3 I4
I1.1 I1.2 I1.3 I1.4 I1.5 I1.6 I1.7 I2.1 I3.1 I3.2 I4.1 I4.2
BAe146 NERC NERC NERC NERC EU
EU
ATR API API API API API API
F-F20 API API API API API API API
D-F20 EU EU EU
M55 EEIG
INSUCNES
EU
IOP BAe-146 Flight Hours
BAe146
Flight planI1.1 I1.2 I1.3 I1.4 I1.5 I1.6 I1.7 I2.1
and I2.2
I3 I4.1 I4.2
I1.7.1 I1.7.2
Description of FP
ITF and Heat Low
Aerosol emissions/
squall passage N/S Land/Atmos/Oc
ean interact
Land/Atmos interact
Veget.
emission
Urban
Survey
Aerosol mixing. Hygroscopicity Dyn
and Chem
of MCS
Long range transp
ort
Mesoscale
structure
Vertical
structure
Before squall line
After squall line
Niamey-cotonou +guinee
gulf
Niamey-
Hombori
FH/flight 4 4 2 4 4
nb of flights 12 5 2 4 3
Total FH 48 20 4 16 12
typical time of flights
0600-1000, 1400-1800
1200-1600
anyvariabl
evariab
le
Total 100
Flight Planning
Flight Planning
IOP pattern I1.1: ITF and Heat Low Surveys
I1.2: DrySquall Line Passage
I1.3: N-SLand-Ocean-AtmosphereInteractions
I1.4: Land-atmosphere
I1.5: VegetationEmissionSurveys
I1.6: Urban Surveys
I1.7: AerosolMixingandHygroscopicity
I2: Dynamics and Chemistry of MCSs
I3: Long Range Transport
I4: MCSsMesoscale & vertical Structure
Key Phenomena/ Lead time
24 hours 24 hours or less
1-4 days 1-4 days 24 hours 12 hours 1-4 days 24 hours 1-3 days 24 hours or less
Intraseasonal regime
Flights before
and after monsoon
onset
Pre-onset
Monsoon onset.
Presence of wet or dry period; likelihood of subsequent rain
Presence of wet or dry period
N/A N/A Presence of a wet or dry
period
Needs to be defined.
Presence of a wet period
Heat Low Intensity of heat
low
N/A Intensity of heat low
Intensity of heat low
N/A N/A N/A N/A N/A N/A
ITCZ/ITF Location of ITF affects flight
patterns
N/A Location of ITCZ affects flight pattern
May influence latitude of flights
May influence latitude of flights
N/A Location of ITCZ affects flight pattern
Influences convective
regime.
N/A N/A
Jets (AEJ, TEJ, STJ)
ConsiderAEJ
position and
strength
N/A N/A May influence latitude of flights
Affect latitude of flights
N/A N/A Influences convective
regime.
Jet strengths influence outflow
Influences convection
regime
AEWs and vortices
Consider AEW
activity and
phase.
N/A Consider AEW activity and phase.
May influence location of flights
Location and intensity of trough/ridge patterns and vortices
N/A N/A Location and intensity of trough/ridge patterns and
vortices
Consider AEW
activity and phase.
N/A
Dry intrusions
N/A N/A N/A N/A May be relevant to AEW patterns
N/A N/A Location and depth of dry
air
Strong SAL
intrusions wil be of interest
N/A
MCSs and convection
Avoid Cb Dry squall
events.
Seek land surface
responses to Cb. Avoid Cb during flights.
Seek land surface
responses to Cb. Avoid Cb during flights
Avoid Cb Avoid Cb
Avoid Cb MCSs over the
mesoscale ground sites
May follow MCS
events from east to west
MCS over the radar
ground sites or within the swath of the
A-Train
Non-precipitating convection
N/A N/A N/A May Influence
flight pattern
Northward extent may
affect latitude of
flights
N/A May Influence
flight pattern
N/A Northward extent may
affect latitude of
flights
N/A
Land surface
Flights before
and after monsoon
onset
Dust emission
& depositio
n
N/A Soil moisture will guide
flight planning
Strong E-W soil moisture
variability
N/A N/A Rainfall on dry surface
could be attractive.
Probably N/A –
needs to be clarified
N/A
Special products
N/A Satellite aerosol
products.
N/A Soil moisture patterns from
satellite
Chemical trajectories.
Soil moisture patterns
from satellite
N/A Soil moisture patterns
from satellite
Chemical trajectories
Ground based radar
products
AMMA database.
Web tool:
http://medias.obs-mip.fr/ammamd
To fill a new form or update an existing form:
login : amma-eu password : 08nov05
For any further information contact Laurence Mastrorillo:
mastrori@medias.cnes.fr
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