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plot1=["z500.s","mslp"] |
Using either the hres_1x1.mv or hres_2x2.mv macro, plot some of these other maps to study the synoptic development. Note for example that there should not be a strong horizontal temperature gradient around Nadine (why?) and the winds should be stronger for Nadine than the cutoff.
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| borderColor | lightblue |
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| bgColor | lightlightblue |
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| titleBGColor | lightblue |
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| title | Isobaric maps |
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- "mslp", "wind10" : MSLP + 10m winds : winds - interesting for Nadine's tracking and primary circulation
- MSLP + relative humidity at 700hPa + "vo850", "mslp" : vorticity at 850hPa : and MSLP - low level signature of Nadine and disturbance associated with the cutoff low.
- "r700", "mslp", : MSLP + relative humidity at 700hPa - with mid-level humidity of the systems.
- "t500", "z500" : Geopotential + temperature at 500hPa : 500hPa - large scale patterns, mid-troposphere position of warm Nadine and the cold Atlantic cutoff
- "t850", "z850" : Geopotential + temperature at 850hPa : 850hPa - lower level conditions, detection of fronts
- 320K potential vorticity (PV) + MSLP, and,
- 500hPa relative vorticity (see Fig. 14 in Pantillon) : "pv320K", "mslp" : 320K potential vorticity (PV) + MSLP - upper level conditions, upper level jet and the cutoff signature in PV, interaction between Nadine and the cut-off low.
- "wind850", "w700" : Winds at 850hPa + vertical velocity at 700hPa (+MSLP) : focus on moist and warm air in the lower levels and associated vertical motion. Should not be a strong horizontal temperature gradient around Nadine, the winds should be stronger for Nadine than for the cutoff.
- 10m winds + total precipitation (+MSLP) : compare with Pantillon Fig.2., impact on rainfall over France.
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| borderColor | red |
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| borderStyle | solid |
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Q. How strongly does Nadine appear to interact with the cutoff?
Q. What would you forecast to happen to Nadine?
Q. What is the fate of the cutoff low and what synoptic conditions did it create over France? |
Task 2: Precipitation over France
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