https://padlet.com/lisle202/4ze1nzts2zyk Made with a curious mind en-us 2018-02-27 15:45:45 UTC 2025-09-24 17:02:04 UTC hello@padlet.com kg19066 https://padlet.com/lisle202/4ze1nzts2zyk/wish/235945596 Solution - minerals are dissolved in the water and carried along in solution. Suspension - fine light material is carried along in the water. Saltation - small pebbles and stones are bounced along the river bed. Traction - large boulders and rocks are rolled along the river bed.]]> 2018-02-27 15:49:10 UTC https://padlet.com/lisle202/4ze1nzts2zyk/wish/235945596 kg19066 https://padlet.com/lisle202/4ze1nzts2zyk/wish/235945821 Water that flows across the land runs downhill. Along the way, it can pick up and carry sediment ranging from fine clay to coarse sand or gravel. As the water runs downhill, it cuts into the soil, forming channels called gullies. When gullies reach a low-lying area, they merge together, forming a larger stream. Streams merge together to form larger streams or rivers. Most sediment carried downhill eventually ends up in a stream and is carried away. In this way, streams affect more of the Earth’s surface than any other agent of erosion. The amount of sediment a stream can carry depends on the speed and size of the stream.]]> 2018-02-27 15:49:29 UTC https://padlet.com/lisle202/4ze1nzts2zyk/wish/235945821 kg19066 https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946033 Abrasion does most of the weathering that occurs in running water, but the lifting effect of flowing water also causes rocks to split up and break. Running water over exposed bedrock also is constantly causing chemical weathering as the water dissolves the minerals of the bedrock.]]> 2018-02-27 15:49:47 UTC https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946033 kg19066 https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946354 Returning to the topic of flooding, emergency planners preparing for the impact of flooding could simulate a 3D city model that includes buildings, digital terrain, and intelligent utility and telecommunications network. This would assist planners to determine power, communications, water and wastewater facilities that may be affected by floods and be able to use the intelligent utility and communications network to determine where power, communications, water and other services may be disrupted.]]> 2018-02-27 15:50:03 UTC https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946354 kg19066 https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946563 Excessive pumping can lead to groundwater depletion, where groundwater is extracted at a rate faster that it can be replenished. Unregulated groundwater use leads to the "Tragedy of the Commons," with the eventual depletion of the resource and ruin to all. The effects of excessive groundwater development tend to become apparent gradually, with time often measured in decades. To assure sustainability, studies must show that the hydrological, ecological, and other impacts of groundwater utilization are minimal.]]> 2018-02-27 15:50:19 UTC https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946563 kg19066 https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946775 Streams will be affected differently by where they
are located and what their surrounding climate already is.
With temperatures expected to rise 1-8 degrees Celsius
by 2050, climate change will cause a varied amount of
effects on rivers.]]> 2018-02-27 15:50:34 UTC https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946775 kg19066 https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946933 Rainfall is the most important factor in creating a flood, but there are many other contributing factors. When rain falls on a catchment, the amount of rainwater that reaches the waterways depends on the characteristics of the catchment, particularly its size, shape and land use.]]> 2018-02-27 15:50:45 UTC https://padlet.com/lisle202/4ze1nzts2zyk/wish/235946933 kg19066 https://padlet.com/lisle202/4ze1nzts2zyk/wish/235947412 Understanding the problem of fresh water scarcity begins by considering the distribution of water on the planet. Approximately 98% of our water is salty and only 2% is fresh. Of that 2%, almost 70% is snow and ice, 30% is groundwater, less than 0.5% is surface water (lakes, rivers, etc) and less than 0.05% is in the atmosphere. Climate change has several effects on these proportions on a global scale. The main one is that warming causes polar ice to melt into the sea, which turns fresh water into sea water, although this has little direct effect on water supply.]]> 2018-02-27 15:51:19 UTC https://padlet.com/lisle202/4ze1nzts2zyk/wish/235947412 kg19066 https://padlet.com/lisle202/4ze1nzts2zyk/wish/235947577 Because the 1-percent AEP flood has a 1 in 100 chance of being equaled or exceeded in any 1 year, and it has an average recurrence interval of 100 years, it often is referred to as the "100-year flood". The "500-year flood" corresponds to an AEP of 0.2-percent, which means a flood of that size or greater has a 0.2-percent chance (or 1 in 500 chance) of occurring in a given year.]]> 2018-02-27 15:51:30 UTC https://padlet.com/lisle202/4ze1nzts2zyk/wish/235947577