.. _UM-DYAMOND-SUMMER:
Unified Model (UM)
========================================
Model description
-----------------
The Met Office Unified Model (UM) vn11.0 is
made of the Global Atmosphere 7.1 and JULES
Global Land 7.0 described in `Walters et al.
(2017) `__. The
UM dynamical core ENDGame uses a
semi-implicit semi-Lagrangian formulation to
solve the non-hydrostatic, fully-compressible
deep-atmosphere equations of motion (`Wood et
al.,
2014 `__).The
model is forced
with climatological distributions
of aerosol and ozone.
Contact
~~~~~~~
`Pier Luigi Vidale `__, National Centre for Atmospheric Science (NCAS), UK
Data structure
--------------
Horizontal
~~~~~~~~~~
The model uses the regular grid N2560.
This grid has 2N points zonally, and 3*N/2
points meridionally, i.e dx(equator)=8km
and dx(mid-lat) = 5km.
Vertical
~~~~~~~~
The model uses 85
vertical levels with 50 levels below 18 km
and 35 levels above this and a fixed model
lid 85 km above sea level.
Data
----
Initialisation and Boundary conditions
--------------------------------------
Soil Initialisation
~~~~~~~~~~~~~~~~~~~
Input Data
~~~~~~~~~~
UM will use the provided `grib file with IFS
data from 01 Aug
2016 `__.
Treatment of SST and Sea Ice
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
UM will use the provided `IFS data (7 day
means) `__.
See also
--------