11

This is a large glacier calving event. Calving occur at the front of the glacier, probably a very wet (and likely warm based) glacier where a considerable amount of water is flowing out of the system (thus from the glacier to the sea). The amount of water is important as it can accelerate the ice flow speed on the valley floor, enabling the breaking of big ...


10

We pump it out. Open and closed pit mines usually have pumping installations to get the water out. Look up Mine dewatering on Wikipedia. There have also been numerous accidents in the past where mines were flooded (YouTube: Turkey mining accident: 18 workers trapped after underground water floods mine), and when left alone many abandoned mines will fill up ...


4

Yes. So far as aquifers are concerned, Antarctica is just like any other continent. The Ice is 4 kilometres thick in places, but at the bottom there is water. If there is any place where water is not found at the base of the ice sheet, there will be an aquifer within a few miles. There are about 400 sub-glacial lakes in Antarctica, the most well known being ...


3

If it’s hot enough to alter the groundwater chemistry that is killing the trees, then you would see it in satellite thermal imaging. Remember, tree roots only go down about 20 to 30 feet at the most, so this is all pretty shallow stuff. This is actually quite a strong thermal anomaly. Like you said, the heat alone may have killed the tree/tree roots.the ...


3

What you are asking about is called "Managed Aquifer Recharge" It has been successfully employed in some situations but depends greatly on the geology of the area. The aquifer needs to be relatively shallow with permeable sediments between it and the surface. If the sediments are not permeable (e.g. clay rich or solid rock) The water won't flow down to the ...


2

An endorheic basin refers to the surface-water flow. The Great Artesian Basin refers to the groundwater aquifer (the artesian part of the name), not the the Lake Eyre surface water basin, which is endorheic. Part of the land area above the GAB is closed with respect to surface water flow. Endorheic basins may or may not be closed with respect to groundwater. ...


2

If you look at early prehistoric Australia. Australia was connected to what is Indoneasia (Papua) and Papua New Guinea. There is a land bridge which the ocean rose over and it still exists today which is called the Torres Strait land bridge. The waters are a maximum of 60 feet in depth. It is not out of the question that GAB was filled up by a PNG ...


2

Land that has been heavily disturbed by humans in most developed countries, such as urban and rural regions will have been surveyed for topographical & sub-division purposes. Such data allows for a digital terrain model (DTM) to be created for such regions. When subsidence occurs, the subsided area can be resurveyed & compared to the original DTM to ...


2

This question might be more appropriate for the SE Engineering site. The thing about soils is that they vary from place to place. Some are sandy, some contain more clay than others and the thicknesses of layers is also variable. All this influences how different soils react to surface loading stresses, such as from building foundations/footings. ...


1

The terrain in the photo is a glacier. There have been a number of incidents since early in World War 2 where aircraft have crashed into or attempted to land on glaciers in the Andes or Greenland, usually with catastrophic results. The aircraft concerned were usually large, multi-engine bombers or airliners. Occasionally there were a few survivors. With ...


1

Several methods are employed to measure ground subsidence: Spirit leveling, GPS (GNSS), Remote Sensing, Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging to name a few. In the case of modeling subsidence caused by water and oil extraction, the most common measuring methods seem to be Spirit leveling, GPS and Remote Sensing (Interferometric ...


1

Your fish will be fine even in the coldest months of the year,And they will not stop eating if the temparature gets lower but their digestion of the food do slow down at the low temparatures. In the coldest part ot the year the temparature at the bottom of a one and a half metres deep pond will stay at or close to the average temparature in your area,and ...


1

I doubt a pond temperature will stay above 60 in central FL winter.Without circulation there will be large temperature gradients caused by stratification, especially on warm days. Surface plants probably lower the maximum temperatures. For such a large pond ,the relative humidity and wind will make a temperature difference ( evaporation is a major heat loss)....


Only top voted, non community-wiki answers of a minimum length are eligible