HAS INDIAN METEOROLOGICAL DEPARTMENT FORGOTTEN SCIENCE OF METEOROLOGY?

METD WEATHER

AKSHAY DEORAS

SEVERE WEATHER FORECASTER

IMD MISGUIDING PEOPLE?

DURING MONITORING ANY ACTIVITY OVER LAND AND SEA, THE INDIAN METEOROLOGICAL DEPARTMENT ( IMD) USES TERMINOLOGY- "THE UPPER AIR CYCLONIC CIRCULATION IS PRESENT IN SOME AREAS"

IMD RELATES UPPER AIR CYCLONIC CIRCULATION TO THE LOW PRESSURE AREAS ( FORECASTED) TO FORM IN A REGION.

BEFORE THE LOW HAS FORMED,IMD MENTIONS SUCH TERMINOLOGY AND IS OFTEN PUBLISHED IN VARIOUS NEWS REPORTS

SAMPLE- THE HINDU BUSINESS LINE DATED 1ST JUNE 2011.

SEE HERE

IN NORTHERN HEMISPHERE, DUE TO THE CORIOLIS EFFECT, LOW PRESSURE SPIN ANTICLOCKWISE OFTEN CALLED AS CYCLONIC SPIN. THE HIGH PRESSURE SPINS CLOCKWISE AND IS CALLED AS ANTICYCLONIC CIRCULATION.

THUS BY MENTIONING " UPPER AIR CYCLONIC CIRCULATION" RELATING TO A SURFACE LOW FORECASTED,IMD MAKES IT CLEAR THAT THERE IS A ANTI-CLOCK SPIN

SCIENCE OF CYCLONES-

CYCLONES ARE THE LOW PRESSURE AREAS FOUND OVER LAND AND MOSTLY OVER OCEANS. THE LOW PRESSURES OVER LAND ARE ALSO REFERRED AS CYCLONES ESPECIALLY THE MID LATITUDE CYCLONES.

WE DISCUSS ABOUT THE CYCLONES FORMING IN OCEANS

THE FIRST PHASE IS PROVIDED BY A TROPICAL WAVE WHICH PRODUCES BANDS OF THUNDERSTORMS. THESE BANDS OF THUNDERSTORMS WITH THE UPPER AIR CURRENT,TRAVEL OVER THE OCEANS WHERE THEY ARE ENCOUNTERED BY WARM SEA SURFACE TEMPERATURE,MOISTURE FROM THE SEA AND THE MOST IMPORTANT OF ALL IS THE HEAT.

AS A THUNDERSTORM STARTS DEVELOPING IN THE OCEAN THAT IS WHEN CONVERGENCE ( MOVEMENT OF AIR MASS FROM SURROUNDING INTO A SYSTEM) GRIPS AT LOWER LEVELS OF THE SYSTEM PROVIDING AN INFLUX OF WARM,MOIST AIR. THE HEAT OF THE SYSTEM IS THE HEAT CONTENT IN THE PARCEL OF AIR WHICH GETS INFLUXED. THIS PARCEL OF AIR RISES WHEN THE UPPER WINDS ARE WEAK,THERE IS CAPE PROVIDING POSITIVE BUOYANCY ( PROCESS IN WHICH PARCEL OF AIR RISES) ADIABATICALLY ( A THERMODYNAMIC PROCESS IN WHICH THE HEAT OF A SYSTEM REMAINS CONSTANT)

IF THERE ARE DIVERGING WINDS ( MOVEMENT OF AIR MASS FROM A POINT IN THE SYSTEM INTO THE SURROUNDING) - UPPER LEVEL DIVERGENCE, THEN THE LATENT HEAT GETS RELEASED WHICH CAUSES THE THUNDERSTORMS TO INTENSIFY WHEN THE WIND SHEARS ARE MINIMAL.

IN ALL-

AIR ENTERS THE SYSTEM IN A LOW LEVEL CYCLONIC CIRCULATION ( LLC) WHICH IS ANTICLOCKWISE OR THE CYCLONIC SPIN IN LOWER LEVELS AND EXITS THE SYSTEM IN A CLOCKWISE REGION OR ANTI-CYCLONIC REGION IN UPPER AIR

FOR MORE UNDERSTANDING CLICK HERE

THUS IF THE GENERAL DEFINITION AND NATURAL SCIENCE SAY THAT FOR A CYCLONE, ITS LOWER PORTIONS HAVE ANTICLOCKWISE SPIN AND THE UPPER LEVELS HAVE CLOCK WISE SPIN WHERE THE HEAT OF SYSTEM IS RELEASED!

IF SO, HOW CAN IMD SAY THERE IS A CYCLONIC ( CLOCKWISE) SPIN AT UPPER LEVELS. IF SUCH THING HAPPENS, WE GET A HIGH PRESSURE REGION AT THE BASE??????????????????

ANOTHER STATEMENT-

"Formation of the offshore trough coupled with an existing upper air cyclonic circulation over southeast Arabian Sea and strengthening monsoonal flows complete the evolving ecosystem for the initiation of the tropical storm"

What connection the offshore trough has with upper air cyclonic circulation?

Trough indicates a region of lower atmospheric pressure. What connection the strengthening monsoonal flows have???

THIS MEANS THAT INDIAN METEOROLOGICAL DEPARTMENT IS USING WRONG CONCEPTS FOR WEATHER FORECASTINGS AND ARE USING ALL CONVENTIONAL ASPECTS!

THIS IS RIDICULOUS FROM THE POINT OF VIEW OF A COMMON MAN WHO TRUSTS THE DEPARTMENT FOR THE WEATHER FORECAST

METD WEATHER CONDEMNS SUCH BASELESS STATEMENTS FROM THE DEPARTMENT. INDIA NEED A REVOLUTION IN METEOROLOGY!