VGA and web mapping Flashcards
(12 cards)
What are web maps?
Interactive digital maps accessible via browsers (e.g., JPEG/GIF conversions).
How does the web change spatial concepts?
Eliminates traditional boundaries; distance becomes irrelevant (e.g., webcams).
Key societal impacts of web mapping?
Breaks barriers in map production/distribution; enables real-time custom maps.
What is VGI?
User-generated geographic data (e.g., OpenStreetMap via GPS/aerial photos).
Pros of VGI?
Local focus, fills data gaps, empowers citizens, free/editable.
Cons of VGI?
Trust issues, no authority, variable accuracy, preservation challenges.
Why contribute to VGI?
Altruism, expertise sharing, self-promotion, or data comparison.
Citizen science vs. VGI?
Citizen science involves trained observers (e.g., Project GLOBE).
What is ArcGIS Online?
ESRI’s platform to share/develop GIS web apps using APIs.
Web’s role in cartography?
Enables interactivity, animation, and collaborative mapmaking.
Privacy concerns in web maps?
Sensitive data (finance/health) secured via passwords/IDs.
Traditional vs. web map authority?
Traditional maps are authoritative; VGI (e.g., Wikipedia) lacks guarantees.