Earth has a unique combination of water in its atmosphere, oceans, and land. The water cycle describes the continuous movement of water on, above, and below the Earth's surface through different states of matter and includes precipitation, infiltration, storage, and evaporation. Below the surface, groundwater flows through zones of saturation and aeration within permeable rocks and soils called aquifers, eventually emerging in springs, streams or being used by humans.
The reason for the occurrence of such a huge mass of water on the globe, is still a myth and reality. The reason goes back to the Origin of Earth itself. The exact mode of origin is not precisely known. Scientists assume, both Primary and secondary sources would have given rise to all both air and water on the earth. Two possible sources as internal source (or) external source have been proposed so far. Some of them are attributed towards the theories of origin of the earth.
The reason for the occurrence of such a huge mass of water on the globe, is still a myth and reality. The reason goes back to the Origin of Earth itself. The exact mode of origin is not precisely known. Scientists assume, both Primary and secondary sources would have given rise to all both air and water on the earth. Two possible sources as internal source (or) external source have been proposed so far. Some of them are attributed towards the theories of origin of the earth.
Oceanography is an interesting subject. Geological oceanography deals with a lot of unique aspects of the oceans including the ocean morphology and relief, continental margins, tectonic processes acting on the ocean bottoms, marine mineral resources, and the deep sea deposits. The subject also focuses on the never ending dynamic processes like ocean waters, ocean currents and their impacts with reference to space and time. Understanding the tectonic disposition and movement of crustal plates are an important part while studying the earth and atmospheric sciences, in general and oceanography, in particular. The continental margins and the deep ocean basins are the two major aspects to be understood in this subject. This lesson is on the characteristics of continental margins.
Oceanography is the science that studies the oceans along with marine organisms and ecosystem dynamics, ocean currents and waves, plate tectonics and the geology of the sea floor, and the chemical substances and physical properties of the world oceans.
It describes about the formation of Islands,about the formation of coral reef. It describes about the ocean currents, their origin and all other concepts related to oceanography.
Seas and Oceans are blue beauties of the planet earth.
Oceans are vast body of saline water occupying the great depressions on the earth. The surface beneath the oceanic waters is characterized by a lot of relief features.
The structure, configuration and relief features of the oceans also vary from each other.On the basis of Bathymetry and other studies, the morphology of Ocean basins contains a lot of relief features. This module highlights many of those features.
Oceanography is an interesting subject. Geological oceanography deals with a lot of unique aspects of the oceans including the ocean morphology and relief, continental margins, tectonic processes acting on the ocean bottoms, marine mineral resources, and the deep sea deposits. The subject also focuses on the never ending dynamic processes like ocean waters, ocean currents and their impacts with reference to space and time. Understanding the tectonic disposition and movement of crustal plates are an important part while studying the earth and atmospheric sciences, in general and oceanography, in particular. The continental margins and the deep ocean basins are the two major aspects to be understood in this subject. This lesson is on the characteristics of continental margins.
Oceanography is the science that studies the oceans along with marine organisms and ecosystem dynamics, ocean currents and waves, plate tectonics and the geology of the sea floor, and the chemical substances and physical properties of the world oceans.
It describes about the formation of Islands,about the formation of coral reef. It describes about the ocean currents, their origin and all other concepts related to oceanography.
Seas and Oceans are blue beauties of the planet earth.
Oceans are vast body of saline water occupying the great depressions on the earth. The surface beneath the oceanic waters is characterized by a lot of relief features.
The structure, configuration and relief features of the oceans also vary from each other.On the basis of Bathymetry and other studies, the morphology of Ocean basins contains a lot of relief features. This module highlights many of those features.
Using the PicCollage App for Reading ComprehensionJennifer Jones
Creation apps are the hottest thing in the classroom right now. Most teachers have PicCollage on their phone for saving memories with pictures from the camera roll. But, how many teachers are using PicCollage for learning? Or, better yet, turning the app usage over to students? I created this presentation for my session at the Margaret Blount Harvey Literacy Institute in Greenville, North Carolina. Teachers will learn why Pic Collage is the perfect app for digital creations, see several examples of PicCollage for reading comprehension and create a PicCollage f their own.
AS Level Physical Geography - Hydrology and Fluvial GeomorphologyArm Punyathorn
Water is an agent of change in the atmosphere, geosphere and biosphere. In this chapter we will try to understand the passage of water as it changes states.We will also look at how the forces of river can shape land forms as well as civilization
Physical Geography Lecture 09 - Water Resources (Ground water and ice) 110716angelaorr
Movement and locations of water. Underground water. Soil water belt, subsurface flow. Percolation. Porosity and Permeability. Hydrologic Zones. Zone of aeration, zone of saturation, water table, effluent and influent condition. Zone of confined water, aquaclude, aquifer, artesian well. Waterless zone. Groundwater management. Groundwater management issues. Aquifer recharge, cone of depression, subsidence, groundwater contamination. The case of Venice Italy. Hydrothermal activity. Hot springs, geysers, fumaroles. Permafrost, melting permafrost. Glaciers, alpine and continental glaciers. Melting glaciers. Lakes. Destruction of the Aral Sea. Swamps and marshes. Streams.
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This power point lesson describes about the hydrology and rivers work in detail with different tools, which is more important for students and candidates of Cambridge Examination at AS level.
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Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2. No other planet in the solar system has the unique combination of
fluids which Earth does. Earth has a surface that is mostly
covered with liquid water, water vapor in the atmosphere, and
both frozen and liquid water on the land.
3. A. Earth’s Water
• The continuous interchange of water
between the atmosphere and Earth ’s
surface.
• Includes the phase changes of water and
the movements of water above, on, and
below the Earth’s surface.
4. Water (or Hydrologic) Cycle
1. Precipitation : The falling of water as
liquid (rain) or solid (ice, hail, and snow).
– It can:
Infiltrate the Earth’s surface
Runoff
from the surface into streams, lakes or
ocean
Be stored in the form of ice and snow
Be evapotranspired back into the atmosphere
from large bodies of water, soil, plants and animals
13. • Underground water provides drinking water for
more than 50% of the US population, 40% of
irrigation water and more than 25% of industry’s
needs.
• The amount of water underground depends on:
– Steepness of slope
– Nature of surface materials
– Intensity of rainfall
– Type and amount of vegetation
14. • How does water
infiltrate the ground?
– Before runoff and
evapotranspiration,
water will usually
infiltrate the Earth’s
surface and become
part of the
groundwater.
15. Ground Water
1. In order for water to
move into the
surface materials of
the Earth, the
materials (rocks/soil)
must be permeable
and unsaturated .
16. Ground Water
2. Porosity – The ratio of the volume of
openings compared to the volume of the
material.
• Depends on:
Shape of the particles
Looseness of the particles.
How well sorted the material is
17. Porosity
• Water will pass more
easily through a
cylinder full of round
beads, than a cylinder
full of square blocks
of the same size.
19. Ground Water
3. Permeability – A material
is said to be permeable if it
allows water to pass
through the connecting
pore spaces of the
material.
• How permeable a material
is depends on the
porosity
20. Ground Water
• The larger the pore spaces between the
particles that make up a material, the
greater the permeability of that material.
–
–
Gravel (large) = High permeability
Clay (very small) = Low permeability
21. •Precipitation recharges the groundwater supply.
•Wetlands and streams are present where the water table lies at
the ground surface.
•Streams gain water during the wet season and may lose water
during the dry season.
22. Groundwater flows down the hydraulic gradient (slope)
from high elevations to low elevations. The shape of
the flow path varies depending upon the local
geological characteristics.
23. Ground Water
• Zone of Aeration – Portion of ground through
which water passes until the water reaches the
zone of saturation.
• Zone of Saturation – Portion of saturated
ground with an upper boundary called the water
table.
• Water Table – The top of the zone of
saturation
25. Water Beneath the Surface
• Aquifers : Permeable rock layers that
allow groundwater to move freely.
• Aquitard : Impermeable layers that do not
let water pass through.
26. Water Beneath the Surface
• An artesian well is any formation in
which groundwater rises on its own under
pressure .
– Conditions:
• Aquifer that is tilted and exposed to the
surface
• Aquitards both above and below the aquifer
(which increases pressure )
28. Water Beneath the Surface
• Aquitards can block upward movement of
water causing it to move sideways. When
the water in the water table approaches
the ground surface, a spring is formed.
• Spring : Flow of water that emerges
naturally at the surface.
29. Water Beneath the Surface
• Hot springs : Groundwater is heated at
great depths and then quickly flows to the
surface (there are more than 1000 in the
US).
• Geyser : A hot spring/fountain that shoots
up with great force at intervals.
31. Ground Water
• Ground Water can be easily contaminated
•
•
•
•
•
•
by:
Landfills
Herbicides
Fertilizers
Underground Storage Tanks (gasoline)
Oils
Failed Septic Systems
32. Ground Water
• Capillarity – upward
movement of water
against the force of
gravity in a narrow
space, such as a
tube, plant vessel, or
fine sand particles.
•
The smaller the
particle size the
better the capillarity
33. 6.3: Water Beneath the Surface
• Formations associated with Groundwater:
– Caverns : Naturally formed underground chambers.
• Most are formed by water erosion with limestone
at or below the water table in the zone of
saturation.
• Dripstone features (dripping water leaves behind
minerals):
– Stalactites : Hang from the ceiling.
– Stalagmites : Build up from the floor.
– May join together to form a column .