surveying iii (topographic and geodetic surveys) - Modern Prepper

More documents

Recommendations

Info

Figures 5-4. PDOP Versus Time PlotPART E - CONDUCTING PRECISE-POSITIONINGSURVEYS5-33. General. This section presents guidance to field personnel performing GPS-Ss for all types ofprojects. The primary emphasis in this section is on static and kinematic carrier phase DGPSmeasurements. The following are some general GPS field procedures that should be performed at eachstation, observation, or session on a GPS-S.a. Receiver Setup. GPS receivers should be set up according to manufacturers' specificationsbefore to beginning any observations. To eliminate the possibility of missing the beginning of theobservation session, all equipment should be set up with power supplied to the receivers at least 10minutes before to the beginning of the observation session. Most receivers will lock on to satelliteswithin 1 to 2 minutes of power-up.EN0593 5-24
. Antenna Setup. All tribrachs should be calibrated and adjusted before to beginning each project.Since centering errors represent a major error source in all survey work (not just GPS surveying), useboth optical plummets and standard plumb bobs.c. Height of Instrument. HI refers to the correct measurement of the distance of the GPS antennaabove the reference monument over which it is placed. HI measurements should be made before andafter each observation session. The HI should be made from the monument to a standard reference pointon the antenna. The standard reference points for each antenna should be established before to thebeginning of the observations. All measurements should be made both in meters and feet forredundancy and blunder detection. Determine the measurement to the nearest millimeter in metric unitsand the nearest 0.01 foot in US units. Note whether the HI is vertical or diagonal.d. Field Global Positioning System Observation Recording Procedures. Field-recording books, logsheets, or log forms should be completed for each station and session. Any acceptable recording mediamay be used. Recording sheets or forms will be used for archiving purposes. The amount of recordingdetail will depend on the project. Low-order geographic mapping points do not need as muchdescriptive information as permanently marked, primary control points. Unit commands may requirethat additional data be recorded. These requirements are contained in the project instructions. Thefollowing data may be included on the field log records: Project name, directive number, observer name(s), and unit name. Station designation number. Station file number. Date and weather conditions. Session start and stop time (local and universal time, coordinated [UTC]). Receiver; antenna; data-recording unit; and tribrach make, model, and serial number. Antenna height (vertical or diagonal measurements in metric or US units). Satellite vehicle (SV) designation and number. Station-location sketch. Geodetic location and elevation (approximate). Problems encountered.5-25 EN0593
Page 1 and 2:
SUBCOURSEEN0593EDITIONAUNITED STATE
Page 3 and 4:
TERMINAL LEARNING OBJECTIVE:ACTION:
Page 6 and 7:
Part G: Adjusting Precise-Positioni
Page 8 and 9:
PART A - FIGURES OF THE EARTH1-1. T
Page 10 and 11:
Figure 1-2. Flattening Fractiona. T
Page 12 and 13:
1-3. Geoid. In geodesy, precise com
Page 15 and 16:
point in the survey to provide the
Page 18 and 19:
one side of a triangle and all of t
Page 20 and 21:
Figure 1-10. Simple Triangulation N
Page 22 and 23:
observation, contains a light sourc
Page 24 and 25:
of a horizontal rod with a small sp
Page 26 and 27:
The Airy theory, announced by G. B.
Page 28 and 29:
Figure 1-15. Products of the Gravim
Page 30 and 31:
a. If the shape of the earth was ex
Page 32 and 33:
Figure 1-16. Single Astronomic Stat
Page 34 and 35:
Figure 1-17. Astro-Geodetic Deflect
Page 36 and 37:
Figure 1-19. Astro-Geodetic Datum O
Page 38 and 39:
(c) The significance of a gravity-o
Page 40 and 41:
absolute deflections of the vertica
Page 42 and 43:
Figure 1-23. Preferred Datumsa. The
Page 44 and 45:
1-17. The World Geodetic System. Be
Page 46 and 47:
Figure 1-25. Using the Same Referen
Page 48 and 49:
LESSON 1PRACTICE EXERCISEThe follow
Page 50 and 51:
12. Which of the following is assum
Page 52 and 53:
LESSON 1PRACTICE EXERCISEANSWER KEY
Page 54 and 55:
THIS PAGE IS INTENTIONALLY LEFT BLA
Page 56 and 57:
for all military and civilian activ
Page 58 and 59:
i. Additional support for other top
Page 60 and 61:
2-7. Status. At present, topographi
Page 62 and 63:
in both. (North American Datum of 1
Page 64 and 65:
water can impede leveling operation
Page 66 and 67:
A field recording booklet. A single
Page 68 and 69:
PART I - OFFICE WORK2-24. General.
Page 70 and 71:
PART J - SURVEY COMMUNICATION2-28.
Page 72 and 73:
length or side is known, and all th
Page 74 and 75:
second-order, Class I net. The leng
Page 76 and 77:
The number of observations required
Page 78 and 79:
to perform the reconnaissance. Fail
Page 80 and 81:
and cultivated, or fields may have
Page 82 and 83:
e an alphanumeric symbol that is st
Page 84 and 85:
2-53. Intervisibility of Stations.
Page 86 and 87:
station is (K/2) 2 x 0.0676, or one
Page 88 and 89:
Figure 2-8. Similar Triangles Solut
Page 90 and 91:
2-54. Height of Obstructions. It is
Page 92 and 93:
authorized to change the name, it s
Page 94 and 95:
Figure 2-12. Cells Connected in Par
Page 96 and 97:
added as the cells weaken. Three un
Page 98 and 99:
Figure 2-16. Construction Details f
Page 100 and 101:
2-60. Wooden Towers. When it become
Page 102 and 103:
Page 104 and 105:
11. The face of the 5-inch signal l
Page 106 and 107:
Page 108 and 109:
average line in a triangulation sys
Page 110 and 111:
3-4. Slope Measurements. The slope
Page 112 and 113:
strip as close as possible to its f
Page 114 and 115:
. Sight along the tops of both of t
Page 116 and 117:
Column 1. Record the station number
Page 118 and 119:
stake to steady it. With the back o
Page 120 and 121:
Figure 3-3. DA Form 4446 (Sample of
Page 122 and 123:
micrometer in this optical system i
Page 124 and 125:
laterally across the front of the e
Page 126 and 127:
Figure 3-7. Horizontal Circle and M
Page 128 and 129:
out of adjustment. If the index mar
Page 130 and 131:
(1) In order to avoid instrumental
Page 132 and 133:
location of the vertical circle on
Page 134 and 135:
Figure 3-13. Open Traversec. Closed
Page 136 and 137:
designate the exact point of refere
Page 138 and 139:
example, a line with an azimuth of
Page 140 and 141:
When adjusting a traverse that star
Page 142 and 143:
Page 144 and 145:
11. The unit of graduation on a hor
Page 146 and 147:
Page 148 and 149:
THIS PAGE IS INTENTIONALLY LEFT BLA
Page 150 and 151:
differential leveling. The theodoli
Page 152 and 153:
additional runs are made due to exc
Page 154 and 155:
Figure 4-2. Wild N-3 Precision Leve
Page 156 and 157:
(8) Loosen the azimuth clamp (13),
Page 158 and 159:
4.7. Miscellaneous Equipment. In ad
Page 160 and 161: (2) To check for gross errors in th
Page 162 and 163: (a) (1) Begin by completing the inf
Page 164 and 165: Set up and level the instrument. Re
Page 166 and 167: Figure 4-8. Sun and Wind Code(5) Th
Page 168 and 169: (10) Enter the interval between the
Page 170 and 171: Figure 4-9. Closed-Circuit River Cr
Page 172 and 173: Figure 4-11. Sample DA Form 5820 (R
Page 174 and 175: is 0. When the telescope is pointed
Page 176 and 177: stations. However, since all statio
Page 178 and 179: a. Complete the heading, as shown.b
Page 180 and 181: a. (1) Enter the date, as in the sa
Page 182 and 183: LESSON 4PRACTICE EXERCISEThe follow
Page 184 and 185: 11. The maximum length of site to o
Page 186 and 187: LESSON 4PRACTICE EXERCISEANSWER KEY
Page 188 and 189: PART A - GLOBAL POSITIONING SYSTEM
Page 190 and 191: 5-7. Pseudorange. A pseudorange is
Page 192 and 193: 5-15. Number of Pseudorange Observa
Page 194 and 195: i. Probable Error Measures. The acc
Page 196 and 197: Table 5-1. Representative GPS Error
Page 198 and 199: Table 5-2. Carrier Phase Trackinga.
Page 200 and 201: exercise extreme caution in applyin
Page 202 and 203: not be designed or performed to ach
Page 204 and 205: Table 5-3. GPS-S Design, Geometry,
Page 206 and 207: f. Multiple/Repeat Baseline Connect
Page 208 and 209: possible ionospheric and tropospher
Page 212 and 213: e. Field Processing and Verificatio
Page 214 and 215: All carrier phase relative-surveyin
Page 216 and 217: time spent and the cost of conducti
Page 218 and 219: movement between occupation sites,
Page 220 and 221: 5-37. General. GPS baseline solutio
Page 222 and 223: (1) Receiver Time. This technique u
Page 224 and 225: NOTE: Repeated baselines should be
Page 226 and 227: 5-43. Loop Closure Checks. Postproc
Page 228 and 229: necessary to determine approximate
Page 230 and 231: This will ensure that future work w
Page 232 and 233: may (and usually does) far exceed t
Page 234 and 235: important in evaluating the overall
Page 236 and 237: i. Relative GPS baseline standard e
Page 238 and 239: LESSON 5PRACTICE EXERCISEThe follow
Page 240 and 241: 12. When the networking method is s
Page 242 and 243: LESSON 5PRACTICE EXERCISEANSWER KEY
Page 244 and 245: THIS PAGE IS INTENTIONALLY LEFT BLA
Page 246 and 247: FAR-77 obstructions. Aircraft-movem
Page 248 and 249: Figure 6-1. Imaginary SurfacesEN059
Page 250 and 251: Figure 6-3. Approach Surfacesa. Fed
Page 252 and 253: . Federal Aviation Regulation-77, S
Page 254 and 255: Table 6-4. Airport Obstruction Accu
Page 256 and 257: A horizontal scale of 1:12,000 and
Page 258 and 259: Figure 6-4. Sample DA Form 5821 (Ai
Page 260 and 261:
Figure 6-5. Sample DA Form 5822 (PA
Page 262 and 263:
Page 264:
show all

surveying iii (topographic and geodetic surveys) - Modern Prepper

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?