MADIKERI: Other than causing huge loss in terms of infrastructure, property and crops, the recent floods and landslides in Kodagu have led to indirect losses that are long-term and complex. For example, these landslides have brought significant sediment load in the drainage channels and connected water reservoirs
One such impacted reservoir is the Harangi dam, which is located close to the northern affected areas near Kushalnagar. Using pre-landslides and post-landslide open source satellite images and advanced GIS image processing, WRI India generated map showing Total Suspended Solid (TSS) concentration within the Harangi reservoir has increased by almost 100 times due to flow of increased load of soil and sediment within the reservoir. It is believed such high load of soil and sediment inflow causes sedimentation within the reservoir and thereby significantly reduces the water holding capacity of the dam.
Silting is a natural hydrological and sedimentological process in which sediments flowing from the upstream catchment area get deposited in the reservoir.
MADIKERI: A month after Kodagu was devastated by unprecedented floods and landslides, questions are being asked about what could have led to the worst natural disaster to strike the tiny district in Karnataka in decades.
While rampant deforestation in the name of tourism has been blamed primarily for the tragedy, experts state there are other reasons that could have contributed to the calamity.
In this article, we look at some of the possible causes that led to the widespread disaster.
“The world has enough for everyone’s need, but not enough for everyone’s greed.” These are the words of Mahatma Gandhi. This saying should enlighten us, but unfortunately that is not the case.
When humans originated on this planet, their demands were confined to food, shelter and clothes. As the time passed, demands of humans increased manifold. Today, in this modern era, or to put it more meaningfully, in this consumerist world, his demands have skyrocketed.
In the 18th century, industrialisation was triggered in England and soon it spread across other European countries. In the early 19th century, industrialisation spread to Asia, South America and Australia. If we confine our discussion only to the Indian context, industrialisation gained pace after independence. Industries need basic infrastructure like uninterrupted power supply, all-season roads, good communication facilities, railway connectivity, airports, seaports, and inland water ways among many others.