MS Land Surveyor key terms

A doctrine that can vest title in a person who possesses another's land openly, notoriously, exclusively, continuously, and hostilely for the statutory period, generally ten years in Mississippi.

The gradual, imperceptible addition of land along a water boundary through natural deposit of soil. Because the change is imperceptible, the riparian owner generally gains title to the added land.

A sudden and perceptible change in a watercourse, such as a flood cutting a new channel. Boundaries generally remain where the water ran before the avulsion rather than moving with the new channel.

The line of deepest channel or principal downstream flow of a stream, often used to locate a boundary between riparian owners or between states along a navigable watercourse.

A traverse run along the bank of a body of water to compute the area of fractional lots. It is generally not a boundary; the water itself is the boundary it approximates.

The priority applied when calls in a deed conflict: natural monuments prevail over artificial monuments, which prevail over courses and bearings, then distances, then area. Specific calls beat general calls.

A doctrine binding adjoining owners to a line they have treated as their boundary for a long period, even if it differs from the record line, where the true location is uncertain or disputed.

Testimony outside the written deed. In boundary cases it may be admitted to explain ambiguities, identify monuments, or show how the parties actually located a line, but not to contradict clear deed language.

A right to use another's land acquired by use that is open, notorious, adverse, continuous, and uninterrupted for the statutory period, rather than by written grant.

A fractional parcel created when a meandered water body, reservation, or closing error truncates a section in the public land survey. It is numbered and its acreage is computed by the surveyor.

A series of consecutive measured courses and angles connecting points, used to establish control or locate boundaries. A closed traverse returns to a known point or direction and provides a check on closure.

The distance by which a traverse fails to close, expressed as a ratio of misclosure to total traverse length, such as 1:10,000. It is a relative indicator of traverse precision.

Also called the compass rule. A traverse adjustment method that distributes the total latitude and departure errors in proportion to each course's length, assuming errors are random and distance-related.

A statistical adjustment that minimizes the sum of squared residuals, yielding the most probable values for coordinates and observations and providing error estimates. It handles redundant measurements with differing weights.

A horizontal direction measured clockwise from a chosen reference meridian, usually true or magnetic north, through a full 360 degrees. Azimuths avoid the quadrant ambiguity of bearings.

The angular difference between magnetic north and true (geographic) north at a place and time. It must be applied to convert magnetic bearings to true bearings and to orient old records to current north.

A relatively permanent object whose elevation above a vertical datum is known and published, used as a starting or closing reference for differential leveling and vertical control.

Two systematic effects on long leveling sights: earth curvature drops the surface below a horizontal line of sight while atmospheric refraction bends the line upward. The combined correction is about 0.0675 feet per mile squared.

Accuracy is closeness to the true value; precision is repeatability among repeated measurements. A precise set of observations can still be inaccurate when a systematic error is present.

A gross mistake such as a misread rod, transposed digits, or a sight taken to the wrong target. Blunders are not random error and are not averaged out; they must be detected and eliminated.

The chronological sequence of deeds, patents, and other conveyances linking the original grant to the present owner. Breaks, gaps, or defective links in the chain are title problems the surveyor must note.

A deed description that defines a parcel by boundary courses, bearings, distances, and monuments, beginning at a point of beginning and returning to it, often referring to adjoining owners.

Placing a deed or plat in the county land records gives constructive notice of its contents to the world. A later purchaser without notice may defeat an earlier unrecorded interest under Mississippi recording law.

The federal rectangular survey that divides land into townships six miles square, each containing 36 sections of about one square mile, referenced by township and range from a principal meridian and base line.

A subdivision of a section described by halving and quartering, such as the NE1/4 of Section 12. Aliquot parts are presumed equal in area unless a survey shows otherwise.

The initial conveyance of public land from the United States or the state to a private owner. It is the usual root of title from which later deeds in a chain descend.

In Mississippi, Section 16 of each township was granted to support public schools. These lands are managed and leased under specific state statutes, and surveys of them often require special care.

Land on which ad valorem taxes went unpaid and title was forfeited to the state. Mississippi has detailed statutes governing sale, redemption, and the records that must be researched before surveying.

A network of points with precisely determined coordinates and azimuths that serves as the framework for detail surveys, boundary work, and mapping. It is typically tied to a published datum.

A system of projected plane coordinates defined by law for each state. Mississippi has East and West zones, and coordinates are referenced to a published horizontal datum such as NAD 83.

A scale drawing of land showing boundaries, monuments, dimensions, and adjacent owners. A subdivision plat, once approved and recorded, dedicates streets and creates lots of record.

A line on a map connecting points of equal elevation. Contour spacing indicates slope steepness, and contours are the primary way topography is portrayed on survey and engineering plans.

An aerial photograph corrected for camera tilt, terrain relief, and lens distortion so that it has uniform scale and can be used like a map for measuring distances and locating features.

A physical object such as an iron pin, concrete post, stone, or marked tree that marks a corner or control point. Found monuments generally control over record distances and should be preserved and described.

The license certificate and seal issued by the Mississippi board. A licensee must seal and sign survey documents prepared under their responsible charge, and the seal may not be applied to the work of others.

Direct control and supervision of surveying work by a licensed surveyor who exercises professional judgment over the methods, computations, and final product, and who seals the resulting documents.

The degree of care, skill, and knowledge ordinarily exercised by competent surveyors performing similar work under similar circumstances. Departure from it is the usual test of negligence.

The state agency that licenses surveyors and engineers, adopts rules of practice, investigates complaints, and imposes discipline such as suspension, revocation, or fines for violations of the licensing statute.

Required professional development units a licensee must earn each renewal period to maintain licensure. Mississippi requires documented hours, including specified ethics or surveying-related content.

A situation in which a surveyor's personal, financial, or other interest could bias professional judgment, such as surveying land in which the surveyor holds an ownership stake, without full written disclosure.