Direct Leveling : Direct measurement, precise, most commonly used; types:
Simple leveling : One set up of level. To find elevation of points.
Differential leveling : Numbers of set-ups of level. To find elevation of non-intervisible points.
Fly leveling : Low precision, to find/check approximate level, generally used during reconnaissance survey.
Precise leveling : Precise form of differential leveling.
Profile leveling : finding of elevation along a line and its cross section.
Reciprocal leveling : Along a river or pond. Two level simultaneously used, one at either end.
Indirect or Trigonometric Leveling : By measuring vertical angles and horizontal distance; Less precise.
Stadia Leveling : Using tacheometric principles.
Barometric Leveling : Based on atmospheric pressure difference; Using altimeter; Very rough estimation.
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