Hydrography - Study guides, Class notes & Summaries

Surveying FS Astronomy and HydrographyThe spherical triangle known as the PZS triangle has sides that are segments of three great circles. Which two of those great circles intersect at the star? - correct answer the hour circle and the vertical circle Which astronomical coordinates are constantly changing and can readily be measured by a theodolite? - correct answer altitude and azimuth The angle between an observer's zenith and the celestial equator will always be equal to what? - correc...

Surveying FS Astronomy and Hydrography Question and answers rated A+ 2023/2024The spherical triangle known as the PZS triangle has sides that are segments of three great circles. Which two of those great circles intersect at the star? - correct answer the hour circle and the vertical circle Which astronomical coordinates are constantly changing and can readily be measured by a theodolite? - correct answer altitude and azimuth The angle between an observer's zenith and the celestial equato...

Surveying FS Astronomy and Hydrography

Hydrography correct answers density dependent on temperature and salinity Compare horizontal and vertical currents correct answers Horizontal currents are typically stronger than vertical. Most currents flow horizontally, while vertical movement is very localized. Describe the Geoid correct answers The Geoid is the shape that the surface of oceans would take under the influence of earth's gravity and rotation alone, in absence of winds and tides. It is the ocean surface at rest and mirror...

Surveying FS Astronomy and Hydrography The spherical triangle known as the PZS triangle has sides that are segments of three great circles. Which two of those great circles intersect at the star? - correct answer the hour circle and the vertical circle Which astronomical coordinates are constantly changing and can readily be measured by a theodolite? - correct answer altitude and azimuth The angle between an observer's zenith and the celestial equator will always be equal to what? - corr...

ECDIS Quiz 5 Legacy USCG Questions And Answers 2024/2025 Newest Review 1. 3062 If the electronic chart is part of an ECDIS, it must display the minimum data required by IMO/IHO, to include all of the following EXCEPT: A. hydrography B. aids to navigation C. tidal currents D. regulatory boundaries C 2. 3063 Which of the following must the electronic chart D of an ECDIS display, as required by IMO/IHO? A. Hydrography B. Ferry routes C. Regulatory boundaries D. All of ...

A map is defined as a graphic representation of a portion of the Earth's surface drawn to scale, as seen from above. It uses colors, symbols, and labels to represent features found on the ground. -The ideal representation would be realized if every feature of the area being mapped could be shown in true shape. -The purpose of a map is to provide information on the existence, location, and distance between ground features, such as populated places and routes of travel and communication. I...

GEOINT (Definition) - ANSWERSThe exploitation and analysis of imagery and geospatial information to describe, assess, and visually depict physical features and geographically referenced activities on the Earth. GEOINT (Acronym) - ANSWERSGeospatial Intelligence Imagery Analysis (definition) - ANSWERSThe science of converting information, extracted from imagery, into intelligence about activities, issues, objects, installations, and/or AOIs. Visual clue categories of image analysis - ANSW...

What does GIS and GNSS stand for Correct Answer Geographic Information Systems, Global Navigation Satellite Systems conversion Correct Answer 1m = 3, ft 1ft = .3048m 0.36v = 1ft 1chain = 66ft 80chain = 5280ft 1mi = 5280ft 1rod = 16.5 ft 1ac = 43560 ft^2 5280' x 5280' = 640 ac 1 nautical mi = 6076.12 ft 1 fathom = 6 ft types of Professional Surveying Correct Answer RPLS, LSLS, PLS, Land Boundary, Topographic, engineering, photogrammetry, hydrography, mining, construction, geospa...