Annual Rate Of Precipitation, Maryland And The District Of Columbia Have Similar Average Annual Precipitation Patterns

Each year, at least 7.8 trillion gallons of water are drawn up from the Ogalla Aquifer to irrigate the crops planted on the High Plains. These cros are the main food sourrce for our entire country. Tragically, irrigation is depleting the aquifer faster than it can replenish itself, and that is the problem. In fact, only the tiniest fraction of the water is ever replaced in the Ogallala Aquifer. If the water were ever fully depleted, the aquifer would need 6,000 years to refill naturally (Zwingle 83). The only way the Ogalla can be replenished is by water seeping down through the layers of soil until it reaches the aquifer. This water comes from the small amount of precipitation in the region, as well as from streams, reservoirs, canals, and irrigation (McGuire and Sharpe).

How does the vegetation surface type affect the amount of runoff? Speculate why this happens.

Warmer temperatures in Arizona in river has been leading to more evaporation. The water that is being used by plants and soil experience evapotranspiration which has accounted for a loss of at least half-million acre-feet of water annually.

“Every homeowner should consider a rain garden to decrease the amount of pollutants running into the watershed” (Morris 305).

Over the years, this area became humid with 36 inches of rain per year. Temperatures in

On average, the temperate deciduous woodland should receive around 750-1500mm of rain per year. If this number is greatly exceeded, then the soil will become saturated and the area will flood, suffocating the plants as they do not have access to sufficient oxygen and carbon dioxide. On the contrary, if there is not enough rainfall then the plants will also die because they do not have access to a plentiful supply of minerals that the water contains such as nitrogen and magnesium.

Hydrologic studies has always been the subdiscipline of environmental science that has most intrigued me; probably because the eco- and geological systems that comprise surface and shallow groundwater systems are so inexorably entwined and very delicate. Both of the virtual labs were interesting, and paint a clear picture of how we affect our hydrosphere and how that, in turn, affects us. Spotsylvania County and the city of Fredericksburg share four water treatment facilities that pull water from the Mott's Run Reservoir, the Ni River, and the Rappahannock River, which is the largest river in the local area, the other two being smaller tributaries that feed into it. The Rappahannock River is a significant body of water, providing the potable water for roughly a quarter-million people. Toward the coast the river sees mostly recreational and some light industrial use, and further upstream it is affected by many small to midsized agricultural operations that take place on the land adjacent to the river.

Drought condition exists throughout most of Arizona. Variable amounts of rainfall throughout last year’s where was significantly below the normal with surface water flows, reservoir levels, and well water pumping levels are at some of their lowest ever recorded all of that act as indication of drought occurrence. Drought is a normal recurring feature of climate, not a rare or random event. Climate influence water quality throughout temperature, precipitation, and wind by affecting the physical, chemical, and biological characteristics of water. For instance, temperature fluctuation results in more stress on aquatic organism within water body, in the same way wind fluctuation has a direct effect on evaporation rate. Municipal water providers in Flagstaff, Williams, Mayer, Pine, Strawberry, and in areas near Sierra Vista, Sonoita, and Picacho have suffered from some potable

The western prairies provinces (WPP) have an area of two million km2, these regions are the main agricultural and food producing regions in all of Canada (Schindler, 2006). As global warming increases, more water will be used for irrigation for crops. Every year, 2.5 km3 of water is used for irrigation on 1 million acres of land. The water comes from reservoirs and lakes that trap snowmelt run-off from the Rocky Mountains, however only twenty percent of this water is returned to the rivers. The WPP temperatures have increased by 4 degrees since 1970 (Schindler, 2006. Most of the rural areas are not receiving 14-24% of their previous annual precipitation in the 1900’s. The summer flows have decreased 20-84% due to the increased warming through its effects on evapotranspiration and evaporation (Schindler, 2001). Low water flows can cause an escalation of water retention that results in increased nutrient retention, thus proliferating Eutrophication. (Helmer,1999). This imbalance between water evaporation, water usage and water replenishment will create scarce resource for Western Canada’s near future.

Washington, D.C. has different types of weather year round. The average annual precipitation is 40.78 inches. It rains annually about a 115 days in Washington, D.C. The average temperature is 55.7 F most of the year there. The winters can get really harsh there also. But from coast to coast Washington D.C. is the best known city in

The runoff carries pollutants such as nitrogen, phosphorus, and sediments into the Bay. In urban areas the standard city block creates five times more runoff than a forested area. About 30% of runoff in an urban area is evaporated, 55% stays runoff, and the other 15% soaks into the land with a variation of deep and shallow infiltration. About 40% of runoff in a forest evaporates, 10% stays runoff, and the extra 50% seeps into the ground with a variation of deep and shallow infiltration. The runoff is actually the fastest growing source of pollution for the Chesapeake

Areas immediately west of the study area tend to receive more winter precipitation and have a more distinctly bimodal precipitation pattern (Dean, 1988:Figure 5.1; Dean, 1996:Figure 5). The sinuous boundary between the two precipitation patterns is determined by the relative strengths of the air masses that bring winter and summer moisture, and accordingly its location has shifted over time (Dean, 1988). Therefore, the Carrizo Wash watershed likely experienced prehistoric periods with significantly greater winter and/or summer precipitation than is characteristic of the historical climate record.

More to the south the rain increases, and the length of the summerdry season shortens. Rainfall totals more than 200 inches per year in some places.

During the past decade, daily record high temperatures have occurred twice as often as record lows across the continental United States, up from a near 1:1 ratio in the 1950s. By midcentury, if greenhouse gas emissions are not significantly curtailed, scientists expect 20 record highs for every record low. The ratio could be 50:1 by the end of the century. By the 2050s, many of the Mid-Atlantic States including urban parts of Maryland and Delaware could see a doubling of days per year above 95 degrees F. In parts of the South, the frequency of days above 95 degrees F could triple, to over 75 days per year. While climate change will not mean the end of cold weather — scientists still expect record lows to occur in 2100 — the odds have clearly

Precipitation in areas such as eastern Texas and Oklahoma have an average of 50 inches per year, while Wyoming, some of Montana, and western Texas only get an average of 15 inches per year. In the northern portions of the Great Plains will experience a greater amount of winter and spring precipitation and amount of heavy downpours and snowfalls. In the center of the Plains the summers will most likely be drier due to less summer rainfall.