Graphics: Both images were acquired by the Operational Land Imager (OLI) on Landsat 8 / NASA
Severe drought is a rather a common occurrence in Chile, but the current one is setting a record-breaking longevity, entering its tenth year. The river flows and reservoirs running dry due to drought worsening, being at their historically low levels. Years of resource exploitation and lax legislation have resulted in most reservoirs in the central parts of the country running dry.
Now, there are more than 400,000 families and nearly 1.5 million people approximately, whose water supply depends on tanker truck deliveries. Animals are dying due to lack of available water.
According to the paleoclimatologists who look for clues of past climate conditions in tree rings, the estimation is that no drought in Chile's modern meteorological record (since 1915) has lasted longer.
They are estimating that the last 'megadrought' of this scale probably occurred in this region more than 1000 years ago, explained René D. Garreaud, a scientist at the University of Chile.
Rainfall amounts lately have been very poor, actually on the extremely low values! Over the last 10 years (since 2010), precipitation in central Chile has been below normal each year by an average of 20-45 %. Around Santiago, the Chile's capital, the lack of rain has been particularly extreme. Only 10-20 % of normal rainfall has been recorded between 2014 and 2019. And in 2019, the greater Santiago area and in Valparaiso, rainfall was almost 80 % below the previous record low. In the northern region of Coquimbo, it was even down by 90 %. While drought is now entering its tenth year, the situation is worsening and is critical.
Comment: With the surge in sightings of red sprites in recent years (which are still considered 'rare' by some) it seems more clues as to the electrical nature of our weather is becoming more apparent:
- Changing atmosphere: Red sprites and a blue jet seen above Europe's stormy skies
- Photographer captures yet another photo of 'rare' red sprites - in skies above Oklahoma
- Strange skies: Red Sprites in Oklahoma, aurora Steve in Canada, iridescent clouds in Illinois and noctilucent clouds in Denmark
- Rare red sprites in action: Mysterious electric tendrils lighting up the sky over Oklahoma filmed
- Unusual outburst of red sprites during storm over Europe, and cosmic ray mapping expands
- 'Strange' Arctic rainbow and red 'summer' sprites in winter - rare atmospheric events on the increase
- Our changing atmosphere: Stunning iridescent cloud over Mexico, complex solar halo over Russia and a triple rainbow over Norway
For more, check out SOTT radio's: Behind the Headlines: Earth changes in an electric universe: Is climate change really man-made?