From Mapnik to MBTiles: The history of vector tiles in three maps, with David Heyman from Axis Maps Watch now → Empowering decisions to shape the future of watersheds and aquifers with Ben Kerr and Foundry Spatial Watch now → Maps are complex, static images are simple: Using the Mapbox...
This map illustrates the composition and extent of the basement aquifers. The map comes complete with a separate cross section sheet and 11-page text. In color, size 125 x 142 cm. $14.95 62-7535 Set, folded 1:250,000 Geological Regional Maps of Minnesota. 1:250,000. Minnesota ...
One of the more beautiful, unusual and useful map projections ever devised was created by cartographerBernard Cahill. The butterfly projection was first published in theScottish Geographical Magazinein 1909. Cahill (1866-1944) later applied for a US patent to protect his creation. I first came ac...
Here, we use a random forest machine learning model to provide a high-resolution (1 arcsecond, roughly 30 m at the equator) spatially explicit global map of probable GDEs in dryland regions. The goals of our map are to: (1) generate a conservative (low) estimate of the likely prese...
Environmental Protection Agency (USEPA) designates two regional aquifers as "sole source aquifers" as follows: the Chicot Aquifer System and Southern Hills Aquifer System. In addition, another aquifer is designated as an " area of groundwater concern" by the State of Louisiana: the Sparta Aquifer...
If last layer is reached, water flux composes the aquifers recharge volume. Deep aquifer is considered as a lost in water balance, but shallow aquifer overfilling is called return flow from shallow aquifer; this volume is routed directly to the mainstream of each subbasin according to each ...
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Figure 1.The study area covers the aquifers of the Duero river basin within Spanish territory. The climate is continental semiarid. Winters are long and cold, with mean temperatures in the order of 2 °C in the higher areas of León and along the northern and southern mountain ranges. Summe...
On my analysis, the Surat CMA regulatory context for groundwater extraction appears to be relatively unsuccessful due to ongoing conflict [99,100,101,102] as well as continuing deterioration of key aquifers in certain areas [104,105,106]. Put simply, based on this analysis, many of the ...
These critical underground tests often occurred within aquifers or below water tables, gaining the site further scrutiny. Many of the site’s opponents noted that the environmental damage from the atmospheric tests had simply taken a different form. Radioactive materials have also been buried undergrou...