Hyperspectral remote sensing measurements using the ARSF Optech Airborne Laser Terrain Mapper 3033 LIDAR, ARSF Rollei Digital Camera, ARSF Specim AISA Eagle and ARSF Specim AISA Hawk instruments onboard the NERC ARSF Dornier Do228-101 D-CALM Aircraft for the AIMWETLAB - Aerial imaging of the wetlands of Lake Balaton and the Kis-Balaton (EUFAR10_01) project (flight reference: 2010_235b). Data were collected over the Balaton Peninsula, Hungary area.

In situ atmospheric measurements using the SAFIRE ATR42 Core Instrument suite onboard the ATR42 - SAFIRE aircraft for the WaLiTemp- Inter-comparison of airborne and ground-based lidar measurements for the characterization of atmospheric water vapour and temperature profiles (WALITEMP) project (flight reference: as42). Data were collected over the Montpellier, France. Mediterranean Basin area.

In situ atmospheric measurements using the SAFIRE ATR42 Core Instrument suite onboard the ATR42 - SAFIRE aircraft for the GEOMAD - Measuring the geoid over Madeira project (flight reference: as40). Data were collected over the Madeira, Portugal area.

In situ atmospheric measurements using the KIT Enduro core instruments onboard the ENDURO - KIT aircraft for the VESSAER - VErtical Structure and Sources of AERosols in the Mediterranean Region project (flight reference: 20120709). Data were collected over the Corsica, France area.

Hyperspectral remote sensing measurements using the ARSF Optech Airborne Laser Terrain Mapper 3033 LIDAR, ARSF Rollei Digital Camera, ARSF Specim AISA Eagle and ARSF Specim AISA Hawk instruments onboard the NERC ARSF Dornier Do228-101 D-CALM Aircraft for the A.NEW - Airborne observations of Nonlinear Evolution of internal Waves generated by internal (tidal) beams (EUFAR10_03) project (flight reference: 2010_196). Data were collected over the Lisbon, Portugal area.

Hyperspectral remote sensing measurements using the INTA Airborne Hyperspectral Scanner and INTA Compact Airborne Spectrographic Imager 1500i instruments onboard the CASA 212 RS - INTA aircraft for the HYMOWEB- HYperspectral MOnitoring of the Water and Energy Balance project (flight reference: intacasa-rs_20100902_hymoweb). Data were collected over the Brussels, Belgium area.

Hyperspectral remote sensing measurements using the ARSF Rollei Digital Camera and ARSF Optech Airborne Laser Terrain Mapper 3033 LIDAR instruments onboard the NERC ARSF Dornier Do228-101 D-CALM Aircraft for the ISOTHERM- Ice SnOw vegetation HypERspecTral Measurements (EUFAR15_28) project (flight reference: 2015_271a). Data were collected over the Mont Blanc, France area.

The Icelandic Volcano, Eyjafjallajokull, started erupting on 14th April 2010. The volcanic ash cloud produced covered much of Northern Europe for several weeks causing extensive disruption to air travel. The UK and European atmospheric communities had many instruments - both airborne and ground-based, remote sensing and in-situ - taking measurements of the ash cloud throughout this period. This dataset contains images from Aberystwyth elight and water-vapour lidars, FGAM lidar situated at Cardington and Salford Urban Built-Environment Research Base lidar. Ash was seen frequently over Capel Dewi and Cardington during the periods 13th - 23rd April 2010 and 11th - 17th May. The ash tended to occur in single, narrow, uniform layers during the first period but in multiple, thicker, patchy layers during the second period. Work has begun on trying to determine the properties of the ash from the lidar observations. A comparison of the Raman lidar returns at 355 and 387 nm gives the lidar (optical extinction to backscatter) ratio. The unexpectedly (and controversially) large mean values for the April period (182) suggest that the ash particles were much larger and darker than those associated with eruptions of Mount Etna (mean lidar ratio values of 55). DK confirmed that similarly large values were found for observations made by an airborne lidar system. The ultimate aim of this type of work is to be able to define the ash source function, which is required to initiate the dispersion model. For example, how much mass was ejected and to what heights? Moreover, how did the ash particles behave one they are airborne? For example, how quickly, did they start to sediment? DK clarified that high pressure over the British Isles appeared to be the driving force which caused the ash to enter the BL - not sedimentation. In order to improve the interpretation of remote sensing data, more will need to be known about the properties of the ash particles, e.g. their complex refractive index. It may be necessary to improve the lidar scattering models for this type of particle, e.g. to encompass Mie scattering.

Hyperspectral remote sensing measurements using the ARSF Optech Airborne Laser Terrain Mapper 3033 LIDAR, ARSF Rollei Digital Camera, ARSF Specim AISA Eagle and ARSF Specim AISA Hawk instruments onboard the NERC ARSF Dornier Do228-101 D-CALM Aircraft for the AIRES-CZM - Using AIRborne REmote Sensing for improved Coastal Zone Management (EUFAR10_02) project (flight reference: 2010_199b). Data were collected over the Santander, Spain area.

In situ atmospheric measurements using the KIT Enduro core instruments onboard the ENDURO - KIT aircraft for the MORE- Marine Ozone and Radiation Experiment project (flight reference: 20100619). Data were collected over the Matera, Italy area.