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<body class='hmmessage'><div dir='ltr'><div><div dir="ltr">Hello </div></div><div dir="ltr"><br></div><div dir="ltr"> My wrf simulation driven by NARR shows large difference from the driving NARR data at the boundary over the Mountain region. </div><div dir="ltr"><br></div><div dir="ltr">See the difference of geopotential height and wind between my WRF simulation and NARR (WRF-NARR, this is 3-month average)</div><div dir="ltr"><div id="inlineImage0" style="display: inline-block"><script type="jsv#3021_"></script> <span contenteditable="true"> </span> <div style="display: inline-block" unselectable="on" contenteditable="false" class="inlineImage" initheight="600" initwidth="682"><img src="cid:inlineImage0" height="600" width="682"></div> <span contenteditable="true"> </span><script type="jsv/3021_"></script></div><br></div><div dir="ltr"><div style="display: inline-block"><span contenteditable="true">You can notice the bule area near the lower boundary where mountain locates. </span></div></div><div dir="ltr"><div style="display: inline-block"><span contenteditable="true"><br></span></div></div><div dir="ltr"><div style="display: inline-block"><span contenteditable="true">Theoretically the simulation at the boundary should be very similar to the driving NARR data. </span></div></div><div dir="ltr"><div style="display: inline-block"><span contenteditable="true"><br></span></div></div><div dir="ltr"><div style="display: inline-block"><span contenteditable="true">Is this due to the terrain elevation difference between WRF and NARR? or there is some issue with boundary nudge? </span></div></div><div dir="ltr"><div style="display: inline-block"><span contenteditable="true">Any comments are appreciated. </span></div></div><div dir="ltr"><div style="display: inline-block"><span contenteditable="true">Thanks a lot!</span></div></div><div dir="ltr"><div style="display: inline-block"><span contenteditable="true">Xiaoming </span></div></div><div dir="ltr"><div style="display: inline-block"><span contenteditable="true"><br></span></div></div><style><!--
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