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Frontal Analysis Nepho Analysis Jet Stream Analysis


The Mediterranean Satrep

It consists of a group of diagnosis of satellite images chosen according to the guidelines of International Satrep; the area of interest includes the Mediterranean and surrounding, so-called Mediterranean enlarged, where the Conceptual Models already covered by International Satrep are identified, although restricted to those with greater frequency, as well as others, on the typical mesoscale of the basin. Mediterranean Satrep includes three diagnostics.

Infrared image
Diagnosis of classical fronts and their any frontal processes, besides others synoptic subjects unidentifiable with Bjerknes Theory. Three categories are detected:
  • FRONTS
  • FRONTAL PROCESSES
  • NON-FRONTAL SYNOPTIC SCALE PHENOMENA
RGB image
Air mass types are highlighted, classified according to the latitude of the area of origin and to the thermodynamic changes suffered when moving on the continent or on the sea. Also, mesoscale cloudness is identified, stressing the typical features of Mediterranean bacin. Four categories are detected:
  • AIR MASSES
  • CLOUDS
  • TYPICAL CLOUDS OF PHENOMENA IN MESOSCALE AND RELEVANT EVENTS
  • MESOSCALE PHENOMENA

Water Vapour image
Diagnosis of High level synoptic subjects, stressing their potential capacity to trigger dynamic processes resulting by interaction with low levels. Three categories are detected:
  • JET
  • EDDY VORTEX
  • WATER VAPOUR FEATURES

ABBREVATIONS OF CONCEPTUAL MODELS


FRONTS

Cold Front
CF in ca Cold Front in Cold Advection
CF in wa Cold Front in Warm Advection
splitCF Split Front
UCF Upper Cold Front

Warm Front
WF Classical Warm Front
UWF Upper Warm Front
DetWF: Detatched Warm Front

Occlusion
OCCL Occlusion
Back Occl Back Occlusion


FRONTAL PROCESSES

FI Front Intensification
FD Front Decay
Cycl Cyclogenesis Inst
Occl Instant Occlusion


NON-FRONTAL SYNOPTIC SCALE PHENOMENA

WCBf Forward Warm Conveyor Belt
WCBr: Rearward Warm Conveyor Belt
CCB Cold Conveyor Belt
Bcl Bound Baroclinic Boundary
CAD Cold Air Development
COMMA: Comma
WpF Warm Pseudofront
CpF Cold Pseudofront
THR Thickness Ridge


AIR MASSES

PMa: Maritime Polar Air type A
PMb Maritime Polar Air type B
PMc Marittime Polar Air becomes continental
PC Continental Polar Air
PCm: Continental Polar Air becomes maritime
MLm: Mid Latitude Air type maritime
MLc Mid Latitude Air type continental
SUBm: Subtropical Maritime Air
SUBmc Subtropical Maritime becames continental
SUBc: Subtropical Continental Air


CLOUDS


Low clouds
StFg Stratus and Fog
MarSt Marine Stratus and Fog
BLSc Stratocumulus of Boundary Layer
Stc Sheets: Extended band of marine stratocumulus in weak cold advection

Convective clouds
OCC Open Cell Convection
CCC Closed Cell Convection
EC Enhanced Cumulus
Cb Thermal Cumulonimbus
MCC Mesoscale Convective Complex
MCS Mesoscale Convective System:

Orographical clouds
MTW Mountain Waves
Lee: Lee Waves
barriage: Barriage Effect
Stau Stau
CaD Cold Air Damming
Lake Cold Lake


TYPICAL CLOUDS OF PHENOMENA IN MESOSCALE AND RELEVANT EVENTS

Mistral clouds produced by Mistral wind
Street clouds produced by wind shear
Spanish plume typical CB clusters extended over Iberian Peninsula
Italian plume typical CB clusters extended over Italian Peninsula
Levanter typical cloudiness over Strait of Gibraltar
Wake Low leeside depression of short mountain chain
Upwelling Upwelling
VA Volcanic Ash
Dust Dust
Snow Snow


MESOSCALE PHENOMENA

Confl Confluence Line
Convl Convergence Line
CoaCl coastal confluence line
posCl postfrontal confluence line
preCl prefrontal Confluence Line


WV STRUCTURES AND FEATURES

Jet
PFJ Polar Front Jet
SJ SubTropical Jet
DerSTREAM secondary flux derived by the jet
DPJ Delta of jet
BRANCHs: southward jet branch
BRANCHn northward jet branch
JET STREAK maximum of wind velocity in the jet body
DRIFT: Isolated jets streak
postCF postfrontal jet branch

Eddy vortex
DTA Active Tropopause Anomaly
LTA Latent Tropopause Anomaly
EYE Wind Shear Vortex
ULL Upper Level Low

Water vapour features
DDA Deformation Band K K shape
Di Stratospheric Air Intrusion