16 Jan, 2023
21 Min Read
|GS-III||Asian Waterbird Census & Kole Wetland||Biodiversity & Environment|
|Doppler Weather Radar Network||Disaster and Disaster management|
|PT Pointer||Harvest Festivals in India||Art and Culture|
Asian Waterbird Census & Kole Wetland
According to a survey done as part of the Asian Waterbird Census (AWC) 2023, some migratory waterbird species, particularly duck species that visit Kerala's Alappuzha region, are experiencing declining populations.
What are the Survey's Highlights?
The number of birds in the Kole Wetland of Kerala declined:
Reasons for decline in number of migratory birds in the Kole Wetland:
About the Asian Waterbird Census:
AWC in India:
Source: The Hindu
Doppler Weather Radar Network
Doppler weather radars: what are they?
[Doppler phenomenon: The observer notices a shift in frequency when the source and the signal are moving relative to one another. Frequency rises as they got closer, and vice versa.]
About radar or Radio Detection and Ranging:
Why Doppler weather Radar or weather forecast is important?
India uses Space-based observation of INSAT-3D and 3DR, OceanSat satellites for the prediction of weather events. Also, the radars and satellite data processing system were launched last year by IMD. Flash Flood Guidance in 2021 has been augmented further by increasing the number of watersheds from 30,000 to 1,00,000 in the country in 2022. It is being provided every 6 hours to Nepal, Bhutan, Bangladesh, and Sri Lanka apart from our national use.
Reason for the delay:
About Shukrayaan Mission:
Shukrayaan Venus mission's importance:
Mission Shukrayaan's difficulties:
About Planet Venus:
Future missions to Venus:
Three more Venus missions were announced in June 2021. NASA and ESA each announced two new missions:
Source: The Hindu
Harvest Festivals in India
In recent years, the harvest holidays like Lohri, Makar Sankranti, and Pongal have been celebrated nationwide.
Various harvest festivals celebrated all over India:
Makaravilakku festival in Sabarimala:
Source: Times Of India
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