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Cold air outbreaks over high-latitude sea gulfs Cover

Cold air outbreaks over high-latitude sea gulfs

Open Access
|Dec 2012

Figures & Tables

Fig. 1. 

Cross sections across an 80 km wide sea gulf at 60°N. Calm ( V g=0), cold, clear sky December day,+20 h simulation. Δx=2 km, SST = + 1 °C, z 0=0.1 mm at the sea.

Table 1. The maximum u, v and w at the indicated heights, T2m at the coast and far inland as the function of the initial surface temperature T s, from a calm case + 20 h simulation with SST of 1 °C.

Max u (ms−1) Max v (ms−1) T2m (°C) Ts (°C) 1 km 10 m 1 km 10 m Max w (cm s−1) 500 m Coast Inland −5 0.3 1.2 0.5 2 1.1 −8.8 −17.9 −10 0.5 1.5 1.5 2.5 3.5 −11.4 −22.0 −15 1 2 2 3 7 −14.2 −27.3 −20 1.5 3 3 4 12 −17.2 −31.7
Fig. 2. 

As Fig. 1 but for (u g, v g)=(2, 0) ms−1 ( V g from left to right).

Fig. 3. 

As Fig. 1 but for (u g, v g)=(6, 0) ms−1.

Fig. 4. 

As Fig. 1 but for (u g, v g)=(0, 10) ms−1 ( V g into the figure plane), z 0=1 mm at the sea.

Fig. 5. 

As Fig. 4 but for (u g, v g)=(2, 9.8) ms−1.

Fig. 6. 

Sea level pressure (dashed lines, hPa), 500 hPa heights (solid lines, gpm) and SYNOP observations from 7 December 1998 12UTC over the Gulf of Bothnia (between Sweden and Finland) and the Gulf of Finland (along 60°N). The location of Gävle, Sweden is marked.

Fig. 7. 

As Fig. 5 but for a gulf 120 km wide.

Language: English
Page range: 12244 - 12244
Submitted on: Aug 26, 2011
Published on: Dec 1, 2012
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services

© 2012 H. I. Savijärvi, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.