APPENDIX 1 Science questions requiring NWP impact assessments for observing system design and evolutions Short name: Science question Full name S1 AMDAR: Coverage of Encourage studies of impact assessment of AMDAR and AMDAR MODE-S in data-sparse regions. Examples include for instance (1) trade space studies between additional vertical profiles over land versus en route data over the oceans, and (2) increasing measurements over poles versus tropics. Provide general guidance for AMDAR extension priorities. S2 Radar: Radar What are the impacts of current observations, observations particularly radar polarization, but also wind profiles, radial winds and reflectivity? S3 PBL: Observations of What should be the focus of improvements for observations the PBL for regional and of the planetary boundary layer (PBL) in support of regional high-resolution NWP and high-resolution NWP? Which variables and what resolution? S4 HighElev: High Estimate the actual and potential impacts of high elevation elevation surface meteorological data from the high mountain regions, for observing stations example using OSSE, OSE or FSOI, on appropriate environmental models. Space-based S5 SatLand: Satellite What is the impact of new developments in the assimilation sounding over land and of radiance data over land, snow and sea ice? ice S6 Sounders: Impact of What benefits are found when data from more than one multiple satellite passive sounder are available from satellites in sounders complementary orbits? S7 AMVs: Atmospheric Which AMV characteristics (temporal resolution, height, etc.) Motion Vectors should be enhanced from the next generation of satellites (such as Geo)? General S8 UA: Regional Upper-air network design studies such as those that have network design been performed for the European composite observing studies system (EUCOS) are required also in other Regions, especially in Region I where the basic networks are under pressure. Assessments of recent changes in the networks, including the impact of launching radiosondes once per day or at non-synoptic times.
APPENDIX 1 Science questions requiring NWP impact assessments for observing system design and evolutions Short name: Full name Science question S1 AMDAR: Coverage of AMDAR Encourage studies of impact assessment of AMDAR and MODE-S in data-sparse regions. Examples include for instance (1) trade space studies between additional vertical profiles over land versus en route data over the oceans, and (2) increasing measurements over poles versus tropics. Provide general guidance for AMDAR extension priorities. S2 Radar: Radar observations What are the impacts of current observations, particularly radar polarization, but also wind profiles, radial winds and reflectivity? S3 PBL: Observations of the PBL for regional and high-resolution NWP What should be the focus of improvements for observations of the planetary boundary layer (PBL) in support of regional and high-resolution NWP? Which variables and what resolution? S4 HighElev: High elevation surface observing stations Estimate the actual and potential impacts of high elevation meteorological data from the high mountain regions, for example using OSSE, OSE or FSOI, on appropriate environmental models. Space-based S5 SatLand: Satellite sounding over land and ice What is the impact of new developments in the assimilation of radiance data over land, snow and sea ice? S6 Sounders: Impact of multiple satellite sounders What benefits are found when data from more than one passive sounder are available from satellites in complementary orbits? S7 AMVs: Atmospheric Motion Vectors Which AMV characteristics (temporal resolution, height, etc.) should be enhanced from the next generation of satellites (such as Geo)? General S8 UA: Regional network design studies Upper-air network design studies such as those that have been performed for the European composite observing system (EUCOS) are required also in other Regions, especially in Region I where the basic networks are under pressure. Assessments of recent changes in the networks, including the impact of launching radiosondes once per day or at non-synoptic times.
CBS-TECO-2018-Doc-6(1)-OPAG-IOS-Chair-Report-Draft1.docx