20.10.2014 Views

Latin America; in English (pdf) - Transboundary Freshwater Dispute ...

Latin America; in English (pdf) - Transboundary Freshwater Dispute ...

Latin America; in English (pdf) - Transboundary Freshwater Dispute ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

SOCIOECONOMIC AND GEOPOLITICAL PARAMETERS<br />

A B<br />

Map 4 (A) Projected P<br />

rojected Population Density: 2025.<br />

opulation Density: 2025. The 2025 population dataset is published at a cell size of 0.5 decimal degrees (DD), which places a size constra<strong>in</strong>t for small bas<strong>in</strong> analysis. The raster<br />

was resampled at 0.01 DD to overcome the deficiency. This disregards some of the assumptions of the orig<strong>in</strong>al 0.5 DD cell size, but affords a tentative estimate of predicted population <strong>in</strong> small bas<strong>in</strong>s.<br />

Because small bas<strong>in</strong>s ma<strong>in</strong>ta<strong>in</strong> less area, there is less area to smooth out data errors. Therefore, some bas<strong>in</strong>s, especially those with a relatively small area (less than 25,000 km 2 ), may have projected<br />

populations significantly lower or higher than they should be. (B) P<br />

(B) Projected W<br />

rojected Water Stress: 2025.<br />

ater Stress: 2025. Water stress is the amount of water available per capita. Water stress estimates do not account for spatial<br />

variability of water resources, nor for technological or other adaptations effect<strong>in</strong>g how a given population manages water scarcity. The map’s calculation of water stress is based on renewable water supply<br />

def<strong>in</strong>ed by discharge, and does not consider groundwater extraction. Falkenmark ’s (1989) def<strong>in</strong>ition of water stress, calculates water supply based on renewable surface and groundwater flows. Accord<strong>in</strong>g<br />

to Falkenmark, a threshold value of 1000 cubic meters per person per year <strong>in</strong>dicates a general po<strong>in</strong>t at which water shortages beg<strong>in</strong> to chronically hamper economic development and human health and<br />

well-be<strong>in</strong>g <strong>in</strong> moderately developed nations.<br />

Atlas of Hydropolitical Vulnerability and Resilience — 83

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!