February 6, 2015

Are we in the age of postmodern groundwater?

Posted by Tom Gleeson

My humanities colleagues and friends are always talking about postmodernism or pomo for short (see this funny satire). I’ve been thinking a lot lately about ‘modern groundwater’ (stay tuned for a cool paper), so I started wondering if there is ‘postmodern groundwater’.

Modern groundwater is groundwater recharged since the huge spike it tritium in the early 1960’s due to above ground thermonuclear testing. But tritium has a short half-life, so atmospheric tritium concentrations have largely decayed back to pre-bomb spike concentrations (see graph below). So does this mean that we are in the age of postmodern groundwater or pomo gw?


Tritium concentrations in precipitation through time (from USGS)

Googling ‘postmodern groundwater’ comes up with nothing, so maybe I’m on to something new. The only thing online that is close seems to be Michael Campana’s more political and very interesting ‘Postmodern water cycle” shown here:

pomo_water cycle

The Postmodern Water Cycle by Kate Ely, Umatilla Basin hydrologist extraordinaire for the Confederated Tribes of the Umatilla Indian Reservation, as posted on waterwired.