While you can map in the field without a top down image of the area, it serves as a helpful tool to guide your work and allocated tasks. The images used in mapping, that are captured from space, are usually taken from a satellite link/contact and therefore referred to as satellite imagery. There are a variety of sources of satellite imagery, including both commercial and public sources, and it is from these images that you can also create field papers.
Kama unatengeneza ramani ikiwa hujafika eneo husika, picha ya anga ni muhimu, na ikiwa inaonekana vizuri, ndio unaweza kupata taarifa zaidi za kutengeneza ramani.Pia unaweza tengeneza ramani ukiwa eneo husika bila ya kuwa na picha ya anga ya eneo hilo, picha inasaidia sana kuelekeza kazi zote.Picha inayotumika katika kutengeneza ramani, ambazo zinapigwa kutoka angani, mara nyingi zinachukuliwa kutoka katika kiunganishi na inajulikana kama picha ya anga.Kuna vyanzo mbalimbali vya picha za anga, kama za kibiashara na kwa ajili ya jamii, na ni kutoka katika hizi picha unaweza kutengeneza karatasi shamba.