1. The CLouds-Aerosol-Radiation Interaction and Forcing: Year 2017 (CLARIFY-2017) programme: deployment, synergies with ORACLES/LASIC/AEROCLO-SA and initial results
Institutes and Investigators
Haywood, Collins
Blyth,Carslaw, Field
Coe, Gallagher, Choularton, Allan, Connolly, Dorsey
Stier, Washington
Bellouin, Highwood
Abel, Taylor, Lock, Jones, Milton
Hugely experienced team in aircraft deployment and maximising the pull-through to modelling
Partners (£1.2m matched support secured): Met Office
CLARIFY-2017: AGU 2017

2. CLARIFY-2016 Aims of Year +1 meeting
To recap what was in the CLARIFY proposal
To discover any potential synergies and discrepancies versus AEROCLO-Sa
To remind participants what we promised in terms of deliverables
To review the flights performed and the progress made in analysis
To review the modelling activities at a range of scales
To assess what deliverables we are unlikely to deliver
To assess our alternative deliverables and to which WPs they contribute

3. CLARIFY-2017 is part of a larger set of studies on the SE Atlantic.......

4. CLARIFY-2016: The Approach
Work-Package Structure:
WP1: Deployment and delivery: UoM (Coe, PI), UoE, UoO, UoL, Met Office, FAAM
WP2: Cloud, aerosol and radiation characterisation: UoL (Blyth, PI), UoM, UoE, UoO, Met Office
WP3: Aerosol-radiation interactions: UoE (Haywood, PI), Met Office, UoR, project partners
WP4: Aerosol-cloud interactions: UoO (Stier, PI), UoL, UoM
WP5: Regional and global scale integration: UoR (Bellouin, PI), UoL, UoM, UoO, UoE, Met Office
CLARIFY-2016: LARGE GRANT APPLICATION, NERC, SWINDON, 16th APRIL 2014.

5. CLARIFY-2016: The Approach
Work-Package #1: Deployment and Delivery
D1.1: UoM, UoE, Met Office, FAAM. Pre-campaign planning. Delivery of secure operating airport and facilities including aircraft GPU and ACU, laboratory facilities, surface site, accommodation and transport as per FAAM operating protocol.
D1.2: UoE, UoO, UoL, UoM, Met Office, FAAM. Deployment support. Delivery of a website hosting these products and links to forecast products from other operational models (e.g. NOAA and ECMWF models from project partners) for optimal deployment of the aircraft (links to D5.1).
D1.3: UoM, UoE, UoO, Met Office, FAAM. Quality Assured Database. Delivery of core, non-core, and surface site QA data from Met Office, UoM, UoE, UoO to BADC (links to all WPs).
Delivered!
Delivered!

6. CLARIFY-2016: The Approach
Work-Package #2: Aerosol, Cloud and Radiation Characterisation
D2.1: Aerosol characterisation (UoM, UoE, UoO, Met Office). Publication on the mean and variability of BBA intrinsic microphysical, chemical, and optical properties together with extrinsic mean and variability in vertical profile and geographic distribution.
D2.2: Cloud characterisation (UoL, UoM, Met Office). Measurements required for (a) D4.1 publication on CCN budgets (b) D4.2 publication on CCN-CDNC closure paper, and (c) D4.3 publication on impacts of cloud-scale dynamics on CDNC D3.3, & D4.1 publications.
D2.3: Radiation characterisation (UoE). Publication on the estimated uncertainty of broad-band and spectrally resolved irradiances and on the uncertainty of aircraft and SEVIRI remotely sensed retrievals of cloud optical properties when compared against observations. These link to D3.1, D3.2, D3.3.
D2.4: Intercomparisons and model evaluation (UoO). a) Consolidated, co-located dataset of in-situ measurement, remote sensing and model simulated aerosol and cloud parameters on central CLARIFY group workspace on JASMIN and b) Publication of synthesised aerosol and cloud characterisation from in-situ measurements, remote sensing and the CLARIFY models.
3 publications

7. CLARIFY-2016: The Approach
Work-Package #3: Aerosol-Radiation Interactions
D3.1: Assessment of the aerosol direct effect in clear-skies (UoE): Publication assessing the consistency of ‘radiative closure’ obtained in clear-skies.
D3.2: Assessment of the aerosol direct effect in cloudy-skies (UoE): Publication assessing the magnitude of the direct radiative forcing of BBA overlying cloud.
D3.3. Impact of overlying BBA on satellite retrievals of cloud optical properties (UoE, UoO, Met Office, project partners): Publication assessing the impact of overlying BBA on aircraft cloud retrievals, operational SEVIRI cloud retrievals and other satellite retrieval algorithms.
D3.4. Assessment of the relative magnitude of the aerosol semi-direct effect (UoR): Publication assessing the impact of the BBA semi-direct effect as captured in the LEM.
4 publications

8. CLARIFY-2016: The Approach
Work-Package #4: Aerosol-Cloud Interactions
D4.1: Near-cloud CCN budgets (UoO, UoL, UoM): Publication on impact of biomass burning and other sources on CCN budgets in marine stratocumulus clouds in the SE Atlantic.
D4.2: (UoL, UoM, UoO): Publication on the closure between aerosol, CCN and droplet number and the assessment of its representation in high-resolution 4A and low-resolution HadGEM models.
D4.3: (UoL, UoM, UoO): Publication on impact of small-scale dynamics, including entrainment and vertical velocity variability, on simulated droplet numbers in high- resolution 4A and low-resolution HadGEM.
D4.4: (UoL, UoM, UoO): Publication on limitations of low-resolution climate models in aerosol-cloud-interactions.
4 publications

9. CLARIFY-2016: The Approach
Work-Package #5: Regional and Global Scale Integration
D5.1. (UoE, Met Office) Publication assessing the performance of the regional and global NWP model against observations, the relative benefits of including prognostic BBA on model performance, and investigation of global scale teleconnections
D5.2. (UoR, UoO) Publication on observationally-constrained HadGEM3 best estimates of BBA radiative effects and fast adjustments, contrasted with previous AEROCOM results and compared to satellite-derived estimates of direct effects and cloud susceptibilities.
D5.3: (UoL, UoO) Publication assessing the impact of parametric and structural uncertainties on aerosol-radiation-cloud interactions.
D5.4 (UoR, Met Office) a) Model simulations of direct, semi-direct, and indirect effect delivered to AEROCOM database and b) Publication documenting the multi- model AEROCOM assessment against the LEM and improved HadGEM3.
D5.5: (UoR, Met Office)Publication assessing effective BBA radiative forcing for present-day and future scenarios.
5 publications