Olivia Harne has designed and published a series of free content on independent GIS work, entitled Grassroots Mapping.
grassroots mapping
GIS Data
Grassroots Aerial Mapping
Aerial imagery has evolved into a more complex and sophisticated enterprise with most aerial imagery today being captured by aircraft and Unmanned Aerial Systems (UAS). Justin Lee and Oliver Yeh, two MIT students made the news in 2009 when, for $150, they launched a balloon into near-space to take pictures of […]
GIS Data
Aerial Mapping with Balloons, Kites, and Pigeons
While aerial photography today is most commonly captured via an airplane fitted with cameras, aerial imagery in the past required more inventiveness with photographers using balloons, kites, and pigeons.