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Chapter 4: Earth Observation Fields

This page contains definitions for child categories of the category referenced by the Chapter title.  The parent category for this page is the Chapter title, and is referenced as being "Up One Level."  The definitions for its children follow below the horizontal line.  The navigation options are listed below. 

 

Up One Level: Scientific Standards

Right Sibling: Earth Observation Targets

Down One Level: N/A

Left Sibling: N/A


 

Category: Atmosphere

Definition:

Standards specific to data acquisition from the gaseous envelope surrounding the Earth in a several kilometers-thick layer.

 

Category: Cryosphere

Definition:

Standards specific to information related to the portions of the Earth’s surface where water is in solid form and frozen ground.

 

Category: Geodesy

Definition:

Standards specific to the methods, techniques, and practices for the study of the size and shape of the earth, geodetic datums, and the earth's gravitational field.

 

Category: Geography

Definition:

Standards specific to the observation and analysis of physical and human geography.

Comments:

Alternate Definition: “Standards that specify information specific to effects of human activity in a region defined by country borders or collectively within a group of countries.”

 

Category: Geology

Definition:

Standards specific to the observation and analysis of the origin, history, composition, structure, physical properties, and dynamics of Earth's surface and interior.

 

Category: Hydrography

Definition:

Standards specific to the observation and analysis of the physical properties of open bodies of water.

Comments:

Alternate Definition: “Standards specific to the observation, analysis, morphology, and usage of oceans, lakes, rivers, and their adjoining coastal areas.”

 

Category: Hydrology

Definition:

Standards specific to the observation and analysis of the physical properties of sub-surface water.

 

Category: Hydrosphere

Definition:

Standards specific to the observation, properties, and analysis of all water found on, under, and over the surface of the Earth.    

Comments:

Alternate Definition: “Standards specific to the observation, properties, and analysis of all bodies of water occupying the Earth's surface, but excluding all lakes and inland seas.”

 

 

Alternate Definition (Source: GEMET): “The waters of the Earth, as distinguished from the rocks (lithosphere), living things (biosphere), and the air (atmosphere). Includes the waters of the ocean; rivers, lakes, and other bodies of surface water in liquid form on the continents; snow, ice, and glaciers; and liquid water, ice, and water vapour in both the unsaturated and saturated zones below the land surface. Included by some, but excluded by others, is water in the atmosphere , which includes water vapour, clouds, and all forms of precipitation while still in the atmosphere.”

 

Category: Land

Definition:

Standards specific to morphology, usage, and classification of land on a regional or global scale.

 

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