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#hydroclimate

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💧🌏 Greg Cocks

There's A Hidden Water Cycle In The Amazon We Barely Know Anything About
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sciencealert.com/theres-a-hidd <-- shared technical article
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pnas.org/doi/10.1073/pnas.2306 <-- shared paper / review
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#GIS #spatial #mapping #water #hydrology #Amazon #AmazonRainForest #rainforest #brazil #peru #colombia #model #modeling #watercycle #river #stream #streamflow #freshwater #watersecurity #environment #habitat #biodiversity #forest #wetlands #hydroclimate #AAA #pathway #rainfall # #precipitation #evapotranspiration #biome #multifactor #spatialanalysis #spatiotemporal #terrestrial #aquatic #sediment #nutrients #climatechange #basin #amazonbasin #temperature #climatology #waterbalance #socialecology

schematic / model graphic - Key processes along the AAA hydroclimate pathway, reflecting how the regional water cycle is linked through continental hydrology, moving water from the Andes to Amazon to Atlantic, and through large-scale atmospheric circulation, moving moisture from the Atlantic to Amazon to Andes. These processes along the AAA pathway underpin social–ecological systems within and beyond the Amazon basin boundaries.
maps - temperature trends across the Amazon basin
photo - parrots on a branch in the rain, Amazon Rain Forest
maps and charts - Change in monthly climatology of the surface and atmospheric water balance components of the Amazon Basin (A) and simplified scheme of these variables over tropical South America (B)
Public
💧🌏 Greg Cocks

Py3DEP [hydroclimate analysis]
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pypi.org/project/py3dep/ <-- link to app / resources
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“Py3DEP is a part of [PyGeoUtils] HyRiver software stack that is designed to aid in hydroclimate analysis through web services. This package provides access to the 3DEP database which is a part of the National Map services. The 3DEP service has multi-resolution sources and depending on the user-provided resolution, the data is resampled on the server-side based on all the available data sources. Py3DEP returns the requests as xarray dataset…”
#GIS #spatial #mapping #Py3DEP #PyGeoUtils #HyRiver #softwarestack #elevation #3DEP #USGS #NationalMap #opendata #processing #spatialanalysis #hydroclimate #water #hydrology #webservices #xarray
@HyRiver @USGS

Public
Shakenbeck

I'm very happy that this paper that Ulf Büntgen and I wrote together has finally come out. Using annually resolved #hydroclimate data we found that central Europe experienced increasingly dry summers from the 420 to the 450s CE (and beyond). This coincided with some of the most devastating raids by #Huns on #Roman territory. We argue that Huns used raiding as a buffering strategy to mitigate against dry summers which made it harder for them to pasture their herds. cam.ac.uk/research/news/drough

University of CambridgeDrought encouraged Attila’s Huns to attack the Roman empire, tree rings suggestHunnic peoples migrated westward across Eurasia, switched between farming and herding, and became violent raiders in response to severe drought in the Danube
Public
Kau)))

Very interesting set of talks at #AGU22 #Climate of the Common Era session this morning. Take-home messages:
- J. Conroy looks at lake sediments in Line Islands spanning last millennium & finds consistent ENSO #hydroclimate response acc. to Line Island corals.
- J. Cole shows Galapagos coral records of last millennium - finds that EP #ENSO (#ElNiño) was 39% (!!) more subdued across last millennium than in 20th century.
- G. Falster finds that there *is* a strong volcanic imprint in the #Pacific Walker Circulation.
- N. Goodkin focuses on reconstructing #NAO tripole SST signals using Atlantic #corals.

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