1 - NGA

map nadir—Point on a map or manuscript
vertically beneath the perspective center of the
camera lens al the instant of exposure.
map of standard format—A map with
dimensions, iayout, Iettaring, and symbolization
In accorUanca with the epacificaliorss tOr the
sartas.
map paraflal—See axla of nomology.
map point—A supplemental conlrol poinl
whosa horizontal position can be obtained by
scaling Ihe coordinates from a map or chart on
which the point can be identified.
map projection—An orderly system of lines
on a plane representing a corresponding syslem
of imaginaw lines on an adopled terrestrial
datum eurlace. A map projection may ba
derived by geometrical mnstrucfion or by
mathematical analysis. See also Altoff equelaraa
map projection; Altsers conical
aqual-map projection; aphylactlc map
pro]action; arsthallc map projection;
azimuthal aquidletaru map projecIlon;
azimuthal map projection; Bonne mep
.projaction; Casalnl map projection;
Caaslni.Soldner map projection;
cortformal map pro)ectton; conic mep
pro]actlon; conic map projection wllh
two ●tanderd pareilels; cylindrical equelaraa
map projection; cylindrical equalspacad
map projactlon; cylindrical map
projactlon; doubly azimuthal map
projection; aqual-araa map projection;
equatorial map projection; globular map
projection; gnomonlc map projection;
Goods’a Interrupted Itomoloelna
projection; Hammer projection;
homalographlc map projection;
interrupted map projactlon; Laborde
map projection; Lambert azimuthal
polar map projection; Lembsrf central
aqulvaient map projection upon the
plana of tha meridian; Lambart
conformal conic map projactlon;
Lamban zanithal aquai-araa map
projactlon; Marcator map projactlon;
meridional orthographic map projection;
modlflacl Lamberr Conformal map
projection; modiflsd polyconlc map
projection; Mollweida homalographic
map projection; nonparapectlve
azlmulhal map projection; oblique map
projection; obliqua Mercator map
projection; orfhambadlc map projection;
MIL-HDBK-850
155
orfhographlc map projactlon;
perapactlva map projactlon; parapecllve
map projection upon a Iangant cyllnttar;
polar map projection; polar orfhographlc
map pro}ectlon; polar ataraographlc
map projection; polyconic map
projection; polyhadrlc projection;
rectangular map projection; rectangular
polyconlc map projection; ●lmple conic
map projection: alnuaoldal map
projection; skewed map projection;
ateraographlc horizon map Prolactlon;
staraographlc map projactlon;
atereographlc meridional map
projection; traneveraa map pro)ectlon;
trenaverae Marcator map projection;
tranavarea polyconlc map projactlon;
Warnar map projection.
map reference code+JCS) A code used
primarily for encoding grid caordinatas and othar
information parlalning to maps. This cods may
be used for other purposes whan the ancryptkm
of numerals is raquired.
map revlslon—See raviaion.
map scale—Sae scale, definition 1.
mep series-(JCS) A group of maps or charts
usually having the same scale and cartographic
specifications, and with each sheet appropriately
iden!ifisd by producing agency as belonging to
the same aerias. Also called eerlea.
map sheet—(JCS) An individual map or chart,
either complete in ttself or part of a serias. Also
called aerles.
map atrbefltuIe-A hasty reproduction of
aerial photographs, photomaps, or mosaics, or
of provisional maps, or any Othar P~U~ used
in place of a map, when the precisa
requirements of a map cannot be met.
map teat—The accuracy of topographic
mapping can be tesled by running Iravema and
level lines across selectad areas 01 any map
sheet, and comparing geographic pOMiOna Of
map features with those determined by travaraa
end comparing interpolated elevations ot points
Irom the map with thosa determined by tha Iaval
line.
map-controlled moaalc—A tecfsnique of
constructing mosaics by using topographic
maps as the basis for comrol and orientation
purpxes. The method may be ueed in