Mount Etna (Italy) Subject: Geography Context: For a week Mt Etna has been belching lava, ash and volcanic rocks on a regular basis as a result of eruption. Concept: Mount Etna is the highest Mediterranean island mountain and the most active stratovolcano or Composite volcano in the world. It is about 3,326 metres […]
Western disturbance Subject: Geography Context: Delhi saw fewer Western Disturbance event this year and this has led to February temperature 7 degree above normal. Concept: Towards the end of February, temperature usually starts rising, however, this is dependent on the number of Western Disturbances. There was 1 Western disturbance around February 5 this […]
Chamoli Lake Subject: Geography Context: The lake which led concern of fresh deluge post-Uttarakhand flood recently is said to be 8 to 9 metres deep with aroung 50000 cubic metres of water in it. Concept: The lake was formed upstream of the Rishi Ganga river after the February 7 flash floods in Uttarakhand’s […]
Once the wettest place on earth seeing decreasing trend in rainfall Subject: Geography Context: A recent study paper published in Environmental Research Letterlooked at the trend of rainfalls in Cherrapunji (Meghalaya) over last 119 years and saw decreasing trend of about 0.42 mm per decade. Concept: Mawsynram overtook Cherrapunji few years back as […]
Alaknanda river’s clear green blue giving way to muddiness Subject: Geography Context: 6 days post flash floods in Uttarakhand saw Alaknanda river water turning muddy raising concern. Concept: Normally Alaknanda is muddy only in the monsoon. It is the result of suspended sand, clay, rocks, in the water. Dhauliganga carried the deposits into […]
Niti Valley and Niti Pass Subject: Geography Context: There are many villages which has been cut-off due to recent flood in Uttarakhand Concept: The Uttarakhand flood has cut-off this and other remote villages. Niti Valley is one of northernmost region of the Uttarakhand. It is the las village in the valley before border […]
LANDSLIDE LAKE OUTBURST FLOOD Subject: Geography Context : New evidence suggests that the incident may have been caused by a breach in a temporary pool or lake formed by obstructions due to landslides or snow avalanches — an event described as a Landslide Lake Outburst Flood (LLOF). Concept: Glaciologists and geologists identified a […]