Multi temporal NDVI composite help in distinction of rice and sugarcane dominated regional patterns in northern India Agriculture is important for the Indian society due to its importance in economy, employment, food security,  national self reliance and general well being. Generation of crop statistics in India dates back to historical Mauryan ( Kautilya’s Arthasastra)  as well as Moghul era (Todarmal Continue Reading »

Floods in Bihar are a common phenomenon during monsoon seasons starting from June to September. From the analysis of long term in-situ gauge data and historical satellite based observations it is well observed that June marks the onset of flooding which progressively increases in July and August months followed by a declining and progressive recession in flooding from mid-September. Gauge Continue Reading »

Life of earth is linked to availability of water and rivers provides water to sustain the human civilization. Ganga river is one of the longest river in India and  is associated with sediment transport and meandering. Ganga river originate in the Himalayas, and it carries lot of sediments. Sediment deposition prevent  any river from flowing straight and cause meander. Gandak Continue Reading »

Since the 1960s the Central Asian lake that used to be known as the Aral Sea has almost completely dried out, due to human activity. This environmental disaster has created a new desert known as the Aralkum (the “Aral Desert”), which now has a size of 255 km × 255 km across that has appeared since 1960 on the seabed Continue Reading »

On the bucket list of several of us to might be to move towards the poles at least once in a life time to witness the breath-taking Northern or Southern lights on our planet. On Earth we don’t have global Auroras but move to Mars and we may witness one! In fact Mars can have global or regional auroras. That’s Continue Reading »