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1.13 Field Notes and Care of Equipment

1.13 Field Notes and Care of Equipment. 1.13.1 Field notes are important! No other phase of surveying is more important than keeping proper field notes. Completeness: Details that look too obvious in field to be included in notes will be obscure to someone else, or to you months later.

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1.13 Field Notes and Care of Equipment

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  1. 1.13 Field Notes and Care of Equipment

  2. 1.13.1 Field notes are important! No other phase of surveying is more important than keeping proper field notes. Completeness: Details that look too obvious in field to be included in notes will be obscure to someone else, or to you months later. DO NOT scribble notes onto other paper, then transcribe neatly into field book! Notes cannot be copied without mistakes! Copied notes are not field notes and, as such, are outlawed in the surveying profession. “----” out mistakes; no erasures! Clarity of procedure: “Can another surveyor replicate my calculations/survey (duplicate my actions) based on my field notes?”

  3. 1.13.2 Field Note Format (common to all surveys) A) Name, address, phone number of surveyor should be printed in permanent ink on the inside and outside of the field book cover. B) First page of each new survey, and beginning of each day’s record: 1) Title of job, date, time and weather, and type of survey 2) Names of the party members, together with job assignments: Party chief Instrumentman Notekeeper Rodman Head tapeman Instrument model and number. If something is wrong with the instrument, you may be able to track down when the systematic errors started occurring, but you have to know what equipment was used. C) Use a standard form appropriate to the type of survey. There may be more than one standard format for a given type of survey, but make sure that others in the future can read your field notes and understand exactly what you did. Examples of field note formats will be provided. D) Measurements should be recorded in the field at the time the measurements are taken. Do not trust your field notes to memory or to slips of paper. If your field notes are copied from one field book to another, the word COPY should be prominently marked on each page of the copy. An explanation should be written including where the original can be found.

  4. 1.13.2 Field Note Format (common to all surveys) E) Draw sketches! Frequent sketches should be used to provide clarity. Don’t skimp since fieldbooks are a very minor expense in a survey. Sketches are not freehand: use straight edges and circle templates.Try to draw objects proportionately, though not to scale. Include a North arrow. F) Do not erase measured data! When an error is made, draw a line through the incorrect number and write the correct number above or below it. Erasures look like you are trying to hide something. Can have legal implications, too. Mistakes in entries other than measured data (e.g. descriptions, sums, drawings of objects) may be erased and reentered neatly. Use a sharp medium-hard pencil (3H up to 6H). H) Write down backsight checks, instrument adjustments, instrument anomalies that occur as they happen. I) The note-keeper verifies all data by repeating them aloud as he or she is entering them in the notes. The surveyor who originally gave the data to the note-keeper listens to make sure it is being recorded correctly. J) If data on an entire page are to be voided, write VOID together with a diagonal line across the page, and write the reference page number for the location of the new data.

  5. 1.13.3 Lab Procedures We will follow a procedure commonly used by surveying firms. A) Checkout list. Sign party name/number and check instruments being used; include instrument numbers when labeled. B) When returning equipment, check “returned” ONLY for that equipment which you can personally verify as returned.

  6. 1.13.4 Care of Equipment 1) Wipe off rain, dirt, dust. Dry off moving parts of instruments, dry off tapes, especially. 2) Instrument adjusting screws should be finger tight only, except when attaching the instrument to the tripod. Always tighten to make the adjusting screw barely snug; just tight enough so it does not move. Any further tightening is abuse of the instrument. 3) Carry instruments upright or cradled in arms; better yet to carry instrument in its carrying case, not attached to the tripod. Never carry the instrument sideways or over your shoulder. 4) Carry instruments with scope loose. 5) Always check that the instrument is tightened to the tripod before picking up the tripod. 6) Turn off instrument when not taking shots to conserve battery. Do not touch lens. Dab with soft cloth.

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