My riverine interlude between Leticia and Belém has been punctuated by a stopover in Manaus, a bustling industrial and most unlikely city of more than 2 million people located at the junction of the Rio Negro and the Rio Solimões. Following the 4-day, 3-night boat trip from Tabatinga described in the first part of this travel-blog, I arrived at Manaus late Saturday. A long walk up the floating ramp brought me in sight of the famous plaque of river heights, a wonderful example of “physical” data visualization (for more, check out this web-site: http://dataphys.org/list/ which I recently discovered thanks to my friend and colleague David Buckley Borden).
As I well knew, 2015 was one of the highest levels on record, surpassed only by 2012 and just barely by 2009. The four years 2012-2015 were in the top 10 since records began more than a century ago, whereas 2016 was in the lower-middle of the pack. A great classroom exercise would be to digitize and plot these data relative to other indicators of climatic change.
I had hoped that I’d spend a couple of nights in Manaus and then catch a boat on Monday further downriver to Belém. I learned Sunday morning, though, that direct boats to Belém leave only Wednesdays and Saturdays. So rather than take a boat Monday to Santarem and then chill there for another boat onward to Belém, I opted to book the Wednesday boat and spend a couple of extra days exploring Manaus.