LIST WATER LECTURES Seminar Series 2018 #12

 

As part of the LIST Water Lectures series organised for the fall session 2018, the next event will take place on 13 November 2018 at LIST premises in Belvaux (LU).

Dr. Patricia de Rosnay from the European Centre for Medium-Range Weather Forecasts (UK) will be the invited speaker and will make an oral presentation on « Satellite products for global numerical weather (NWP) prediction systems and perspectives for coupled NWP-hydrology forecasts ».

Abstract

Satellite products for global numerical weather (NWP) prediction systems and perspectives for coupled NWP-hydrology forecasts

Initialisation of land surface variables is a key component of Numerical Weather Prediction (NWP) systems.  This paper presents the European Centre for Medium-Range Weather Forecasts (ECMWF) land data assimilation system used for operational Numerical Weather prediction and operational reanalysis. It relies on a weakly land-atmosphere coupling approach, using a coupled land-atmosphere background forecast and separate analyses for the atmosphere and for the surface (screen level variables, soil moisture and snow).  Different approaches are used for snow and soil moisture initialisation, based on Optimal Interpolation and simplified Extended Kalman Filter.  Both conventional in situ observations from the SYNOP network and satellite observations are assimilated.  They are located at the land-atmosphere interface and include two-meter temperature and relative humidity, snow depth, and soil moisture.  I will describe the data assimilation system and I will show the impact of snow and soil moisture assimilation on the NWP performances.  I will present recent developments to assimilate the SMOS (Soil Moisture and Ocean Salinity) neural network observations and to use an ensemble land assimilation approach, and I will discuss perspectives of land surface assimilation developments in the context Earth system approach developments at ECMWF.

About LIST Water Lectures Seminar series

Visit the main LIST WATER LECTURES SERIES page / 2018 edition > www.list.lu/en/events/LIST-WaterLecturesSeries

The LIST Water Lectures series were launched in January 2017 and covers various aspects of water resources research towards a sustainable river basin management. The series aggregate a group of outstanding experts and scientists in water resources research and related fields. They are funded by the Luxembourg National Research Fund (FNR) and organised by the Luxembourg Institute of Science and Technology (LIST) in the framework of the Doctoral Training unit in hydrological sciences’ activities.

> For any question on this event, contact Julian Klaus via email.