IFS Documentation front page

I Observations
II Assimilation
III Dynamics
IV Physics
V Ensemble
VI Technical
VII Waves

Part IV: Physical processes

CHAPTER 4 Subgrid-scale orographic drag

Table of contents

4.1 General principles

4.2 Description of the scheme

4.2.1 Blocked-flow drag

4.2.2 Gravity-wave drag

4.3 Specification of subgrid-scale orography

4.4 Code

4.4.1 GWSETUP

4.4.2 GWPROFIL

4.4.3 GWDRAG