The following list shows the main Key Parameters discussed in the manual, as well as several additional parameters which might or might not be helpful. Some of the given parameters are absolutely essential for the diagnosis of Convergence Lines over Sea and Lakes, some supply additional information, and some are unnecessary. Only the essential parameters can be regarded as Key Parameters.

Choose the parameters you think of as Key Parameters for Convergence Lines over Sea and Lakes from the list below; submit your choice by clicking on the button below the list!

Height of PV = 2 units (PV)
Height Contours at 1000 hPa (H1000)
Height Contours at 500 and/or 300 hPa (H500/300)
Equivalent Thickness (Th.)
TFP (TFP)
Temperature Advection at 700 hPa (TA700)
PVA at 500 hPa (PVA500)
PVA at 300 hPa (PVA300)
Isotachs at 300 or 250 hPa (Isot)
Stability Index (Stab.)
Thetae/Thetaw at 850 hPa (Th850)
Vertical Motion (VM)
Wind Vectors (WV)
Temperature difference Sea - Air (TD)
Path of air parcel over Sea (Fetch)
Low Level Divergence (LLD)

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