Heat waves Flashcards
Define heatwaves
Period of unusually high temperatures than usual in particular region
Vary according to region
Who define criteria for heatwaves
IMD (Indian Meteorological Dept)
IMD criteria for defining heatwaves
Heat wave is considered if maximum temperature of a station reaches at least
Plains max temp >= 40 deg C
Hilly region max temp >= 30 deg C
When maximum temperature of plains reaches __ deg C or more, then it is considered as Heatwave
40 deg C
When maximum temperature of hilly region reaches __ deg C or more, then it is considered as Heatwave?
30 deg C
Severe heatwave
When departure from normal temperature is > 6.4 deg C
What happens when departure from normal temperature is > 6.4 deg C
Sever Heat wave
Color codes
Green,
Yellow-Heat Alert
Orange - Be prepared
Red - Severe Heat wave
Health effects of heat wave
Heat cramps, sunburns, thus women more vulnerable
Economic effects of heat wave
Impacts productivity
High energy consumption
Social effects
Women more vulnerable, increased violence, increased child marriages
3 Heat wave effects on Agriculture
Decreased poultry productivity
Crop damage
Intensified water crisis
Climate change
Increased energy consumption
Forest fires
4 Factors for heatwaves
Hot dry air over region
Absence of moisture in upper atmosphere
Cloudless sky
Anticyclonic conditions
Monitoring measures
IMD alerts
