Acronyms
GIS
What is Geographic Information Systems?
We discussed different mapping elements used to create a map. Name 4
•Title •Legend •Scale
•North arrow •Source and date
•Projection •Neatline
•Labels and annotations
A location-aware, map-based mobile app built for field operations and designed for both connected and offline use, allowing teams to work seamlessly regardless of network availability.
What is ArcGIS field maps?
What are the 3 segments of GPS?
Space Segment
Control Segment
User Segment
This term refers to the use of satellite or airborne sensor technologies to detect and classify objects on Earth.
What is remote sensing?
GPS
Global Positioning System
What is vector data?
This type of data is represented by points, lines, and polygons in a GIS.
This GIS software is known for its spatial analysis and mapping capabilities and is produced by a company founded by Jack Dangermond.
What is ArcGIS?
What are the 3 components of the control segment?
Main parts of the control segment:
Master control station
Monitoring stations
Ground antennas
This satellite system provides high-resolution images and is often used in GIS for land cover analysis.
What is Landsat?
DEM
What is a digital elevation model?
What is spatial analysis? How does it differ from geoprocessing?
What is spatial analysis?In GIS, this term refers to the process of overlaying multiple layers of data to identify relationships between them.
This term describes the process of converting data from one coordinate system to another.
What is projection?
What is trilateration?
GPS determines location using a process called trilateration.
A receiver calculates distance to multiple satellites using signal travel time.
At least four satellites are required to determine a precise 3-dimensional position (latitude, longitude, elevation).
We discussed 9 different image elements. Name 4
Tone/Color
Size, Shape, Texture
Pattern, Height, Shadow
Site, Association
SQL
What is structured query language?
What is a raster model?
What is a raster model?This type of GIS model uses a grid of cells to represent geographic data, commonly used for representing continuous surfaces like elevation or temperature.
This cloud-based GIS platform allows users to create interactive maps and apps, often used for sharing spatial data with the public.
What is ArcGIS Online?
What is DOP?
Dilution of Precision measures how satellite geometry affects accuracy.
•Low DOP = better accuracy
•High DOP = poorer accuracy
This principle explains how different surfaces absorb and reflect various wavelengths of light, which is critical in interpreting satellite images.
What is the electromagnetic spectrum?
GNSS
Global Navigation Satellite Systems
What is a coordinate system?
This term refers to the reference framework that defines the position of geographic features using coordinates such as latitude and longitude.
What is mission planning?
Mission Planning is the process of choosing the best time and conditions to collect GPS data.
We talked about 5 types of GPS Error. What are 3?
•Atmospheric Delay
•Multipath Error
•Satellite Geometry (DOP)
•Obstructions
•Receiver Quality
This process combines multiple remote sensing images taken at different times to analyze changes in the landscape over time.
What is temporal analysis or change detection?