---

layout: default

title: Report Series

---

<h1>Report 22:&nbsp;&nbsp;&nbsp; The Effect of Horizontal

Resolution on Cloud Radiative Forcing in the ECMWF Model</h1>

<p><b>Potter, </b>Gerald L.

<br>

May 1995, 28 pp.&nbsp;

</p>

<hr>

The ECMWF general circulation model (cycle 33) was used to test the

effect of horizontal resolution on the simulated cloud radiative forcing.

The model was run with four resolutions: T21, T42, T63 and T106 and the

results were compared to the Earth Radiation Budget Experiment (ERBE).

The ECMWF model produces relatively large errors in comparison to observations

for January and July which can be attributed to the model being too dry

and clouds too reflective. Only the T21 resolution displays substantial

differences from the other resolutions, and all resolutions are substantially

different from ERBE observations. <a href="pdf/rep22.pdf">(pdf file)</a></blockquote>

<p><font size=-1>UCRL-MI-123395</font></p>