Workshop: Observational campaigns for better weather forecasts

The Iceland Greenland Seas Project (IGP) is a coordinated atmosphere-ocean research program investigating climate processes in the source region of the densest waters of the Atlantic Meridional Overturning Circulation. During February and March 2018, a field campaign was executed over the Iceland and southern Greenland Seas that utilized a range of observing platforms to investigate critical...

The Special Observing Periods (SOPs) within the Year of Polar Prediction aim to provide enhanced observations for the benefit of model improvement for NWP. SOP1 and SOP2 provide additional radiosoundings for a winter and summer period during 2018. For the third one, the SOP3, it is the ambition to coordinate additional observations complementary to the MOSAiC effort. The aim is to target warm...

Extensive surface based remote sensing observations of Arctic clouds have been made during two recent research cruises: Arctic Cloud in Summer Experiment (ACSE, 2014) and the Microbiology-Ocean-Cloud Coupling in the High Arctic (MOCCHA, 2018). The cloud properties were retrieved using Cloudnet from measurements by Doppler cloud radar, lidar, scanning microwave radiometer, and 6-hourly...

Unusual states of the Arctic regions, for example, less sea-ice extent, high temperatures in the atmosphere and ocean, much snowfall, and extreme weather events in the Arctic and beyond, have been prominent in recent years in particular during winter time. Those phenomena are scientifically important for understanding the air-ice-sea coupled physical processes and improving skills of numerical...