UPSC Geography 15- Weather

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UPSC Geography 15- Weather

Instruments

• Used by Meteorological Departments
• Campbell stroke sunshine meter
• Opisometer - measure distance on the map
• Theodolite -measuring angles in the horizontal and vertical planes
• InClinometer - different andles of slope
• Heterograph -rain guage
• Gunn Bellani radiometer-radiation

Charts

• Isobar
• Synoptic Chart
• Isobasic - elevation
• Isochrone -time
• Isogon - magnetic
• Isohytes - rainfall
• Isoneph - cloud
• Isophene -flowering
• Isorhyme - frost
• Isotach -wind

Terms

• Relative humidity - Percentage
• Specific humidity -  wt of WV / (wt of Air + WV)
• Absolute Humidity (WV / Volume)
• Vapour Pressure
• Air Containing WV is lighter
• Hygroscopic Nuclie causes Rainfall
• Silver Iodide- Artificial Rain
• Sleet - raindrop in ice form
• Hail
• Dew - below dew point
• Fog - cloud near land, Advection Fog (landmass), Frontal Fog (carried by some other place
• Mist - droplets near land
• Frost
• 0 deg C- 45 deg Latitude - 1049 Millibar - 3 inch of mercury

Clouds

• Cirrus - Feathery
• Cumulus
• Stratus
• Nimbus

Cyclones

• Low pressure Center - Eye
• Anticlockwise in Northern Hemisphere
• Stadium Effect- Outward curving
• Heat of condensation
• Fastest wind -  Northward moving (RH), Westward Moving (LH)
• Fujiwhara Effect - Two cyclone revolve around each other & ultimately collapses among themselves
• Project Storm Fury - Hurricane Debbie 1965
• Fujita scale - F1 - F5
• Torro Scale (T11)
• Infrasonic Waves
• Electromagnetic Spectrum
• Beaufort Scale - Air (upto 5 km/hr), Breeze (50), Gale (90), Storm (120), Hurricane ( Above)
• Depression is temperate Cyclone

Click Here to View UPSC Geography 15- Weather Slide

** Above Video is created by KapsOne Studies and Placement Center, Nagpur for Guidance of UPSC Civil Service (IAS /IPS / IFS / IRS / SSC / Railways / NDA), MPSC Rajyaseva, UPPSC, MPPSC, BPSC, RPSC, NCERT Aspirants on UPSC Geography 15- Weather.