EM 1110-2-2907
1 October 2003
Batch processing
Method of data processing in which data and programs are entered into
a computer that carries out the entire processing operation with no
further instructions.
Bathymetry
Configuration of the seafloor.
Beam
A focused pulse of energy.
BIA--Bureau of Indian
The BIA serves Indian and Alaska Native tribes living on or near
Affairs, Department of the
reservations. The BIA administers and manages approximately 52
Interior
million acres of land held in trust for Indians by the United States and
works with local tribal governments on issues including road
construction and maintenance, social services, police protection, and
economic development.
BIL (Band-Interleaved-by-
BIL is a CCT tape format that stores all bands of satellite data in one
Line)
image file. Scanlines are sequenced by interleaving all image bands.
The CCT header appears once in a set.
Bilinear
The term bilinear is referring to a bilinear interpolation. This is simply an
interpolation with two variables instead of one.
Bin
One of a series of equal intervals in a range of data, most commonly
employed to describe the divisions in a histogram.
Binary
Based upon the integer two. Binary Code is composed of a combination
of entities that can assume one of two possible conditions (0 or 1). An
example in binary notation of the digits 111 would represent (1 X 2) + (1
X 2) + (1 X 2) = 4 + 2 + 1 = 7.
Bit
Contraction of binary digit, which in digital computing represents an
exponent of the base 2.
BIP--Band-Interleaved-by-
When using the BIP image format, each line of an image is stored
Pixel
sequentially, line 1 all bands, line 2 all bands, etc. For example, the first
line of a three-band image would be stored as p1b1, p1b2, p1b3, p2b1,
p2b2, p2b3, where p1b1 indicates pixel one, band one, p1b2 indicates
pixel one, band two, etc.
Blackbody
An ideal substance that absorbs the entire radiant energy incident on it
and emits radiant energy at the maximum possible rate per unit area at
each wavelength for any given temperature. No actual substance is a
true blackbody, although some substances, such as black lamps,
approach this property.
Blind spot
The point of the optic nerve to the retina where no radiation is detected
by the eye.
BLM--Bureau of Land
Under the Federal Land Policy and Management Act of 1976, the BLM
Management, Department
administers and manages approximately 300 million acres of public
of the Interior
lands primarily located in the western half of the lower 48 States and
Alaska. Public lands in the U.S. contain mineral and timber reserves,
support habitat for a host of wildlife, and provide recreational
opportunities.
BOR--Bureau of
The BOR was chartered in 1902 with the responsibility to reclaim arid
Reclamation, Department
lands in the western U.S. for farming by providing secure, year-around
of the Interior
water supplies for irrigation. The BOR's responsibilities since have
expanded to include generating hydroelectric power; overseeing
municipal and industrial water supplies, river regulation, and flood
control; enhancing fish and wildlife habitats; and researching future
water and energy requirements.
BPI--Bits Per Inch
The tape density to which the digital data were formatted.
Brightness
Magnitude of the response produced in the eye by light.
Brute Force Radar
See real-aperture radar.
BSQ--Band Sequential
BSQ is a CCT tape format that stores each band of satellite data in one
image file for all scanlines in the imagery array. The CCT headers are
recorded on each band.
Byte
A group of eight bits of digital data.
Glossary-4
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