Monday, March 17, 2008

The Surface Runoff

SURFACE RUNOFF;D

(Dreaming...)

Wow! I live in a place called Paraiso. Many colorful flowers, cute animals, beautiful sceneries and specially FOOD. yum... yum... yummy!!! What a nice life! YUCK! what's that smell? WHy does the water in this stream is dry? I must investigate...

(woke Up) ringing the bell...

What the! I just got a nightmare.

Serf... fffaaccee..... Raaaannn.... ooofffff....

Surface Runoff

Surface runoff is a science term used to tell the measure, from rain, snowmelt, or other things, over the land and is a major component of the water cycle. Runoff occurs on surfaces before reaching a channel is also called a nonpoint source.Surface runoff also occurs when rainfall exceeds a soil's maximum saturation level and all surface depressional storage is filled to capacity. the rate of the run flow depends on the rain intensity to the infiltration rate. If the infiltration rate is relatively low, such as when a soil is crusted or compacted, and the intensity is high, then the runoff rate will also be high. High runoff rates can both detach and transport large amounts of soil, as well as transport the associated nutrients and pesticides. In my opinion, about water storage in the oceans we describe how the oceans act as a large storehouse of water that evaporates to become atmospheric moisture. We know oceans are kept full by precipitation and also by runoff and discharge from rivers and the ground. Many people today probably have an overly-simplified idea that precipitation falls on the land, flows overland (runoff), and runs into rivers, which then empty into the oceans. That is "overly simplified" because rivers also gain and lose water to the ground. Still, it is true that much of the water in rivers comes directly from runoff from the land surface, which is defined as surface runoff.

Meteorological factors affecting runoff:

  1. Type of precipitation (rain, snow, sleet, etc.) Rainfall intensity.
  2. Rainfall amount Rainfall duration.
  3. Distribution of rainfall over the drainage basin.
  4. Direction of storm movement .
  5. Precipitation that occurred earlier and resulting soil moisture Other meteorological and climatic conditions that affect evapotranspiration, such as temperature, wind, relative humidity, and season.
  6. Physical characteristics affecting runoff:
  7. Land use Vegetation Soil type Drainage area Basin shape Elevation.
  8. Topography, especially the slope of the land Drainage network patterns Ponds, lakes, reservoirs, sinks, etc. in the basin, which prevent or delay runoff from continuing downstream.

"Surface Runoff is like in the land we called it drought. The sun shines so brightly causing the land to crack. You know the place in the molino road here in Cavite their is a river like that as I have to say that river is full with water but now it is called surface runoff. Why did'nt rain? Oh I love to rain."

This Is my Project. Hope you like it. Thank you.

Submitted By:Victofer A. Aca-ac

Please add me at friendster= victofer@yahoo.com

;D ;D ;D ;D ;D ;D ;D ;D ;D


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