diff --git a/PARAM_DEF/wnd_swe_pdyn.xml b/PARAM_DEF/wnd_swe_pdyn.xml
new file mode 100644
index 0000000..5771161
--- /dev/null
+++ b/PARAM_DEF/wnd_swe_pdyn.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<param xml:id="wnd_sw_pdyn">
+    <!--<TemporaryFillValue>-1.e+31</TemporaryFillValue>-->
+    <get>
+        <vi name="wnd:swe:kp">
+            <baseParam name="Vmag"/>
+            <baseParam name="Np"/>
+        </vi>
+    </get>
+    <process>0.000002*$wnd_swe_kp_Np*pow($wnd_swe_kp_Vmag,2)</process>
+    <output/>
+</param>
--
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