Computations using pathways and networks Nigam Shah [email protected].
Teleconnections Nigam, 2003
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Teleconnections Nigam, 2003 Speaker ： Pei-Yu Chueh Adviser ： Yu-Heng Tseng Date ： 2011/3/15
description
Teleconnections Nigam, 2003. Speaker ： Pei-Yu Chueh Adviser ： Yu- Heng Tseng Date ： 2011/3/15. Teleconnection Map. WP. PNA. NAO(SLP). Atlantic Sector teleconnection. PNA. 500hPa geopotential height. SLP. 500hPa geopotential height. SLP. decadal. Correlations of NAO with - PowerPoint PPT Presentation
Transcript of Teleconnections Nigam, 2003
TeleconnectionsNigam, 2003
Speaker： Pei-Yu Chueh Adviser： Yu-Heng Tseng
Date： 2011/3/15
Teleconnection Map
WP
PNANAO(SLP)
PNA Atlantic Sectorteleconnection
500hPa geopotential height
SLP 500hPa geopotential height
SLP
decadal
NAOSLP 850hPa temp
NA
WE
Correlations of NAO withland station precipitation
Regression of NAO withdiabatic heating
Storm track
WP200hPa geopotential height SLP(NPO)
The WP pattern represents both intraseasonaland lower-frequency variability over the North Pacific.
westward tilt
Land station precipitation
ENSO
NAO
PNA
WP/NPO
NW P
NW P
Comparison of WP/NPO and NAO
SLP SLP
1. tropospheric jet structure
2. NAO different feature
jet is shifted poleward polar vortex is strengthened in the Pacific lower stratosphere
weak zonal wind anomaly in the tropicsstronger extensions into the stratosphere
Weekly evolution of PNA variability
