Based on the current research achievements of GPS data application

a recent advance in combining GPS technology with digital camera was applied for showing fieldwork efficiently.Firstly

a photograph was taken for the GPS screen with the GPS time on it when it established a contact with satellite.The time was compared with the digital camera's time to get the difference of the time between the GPS and the digital camera.Then

photographs were taken for the scenery on the track of field work and the position was located with GPS where the photographs were taken at the same time.With the GPS receiver

spatial information of the position

including longitude

latitude

and altitude

was recorded.Finally

the time of the photographs was edited with RoboGEO software and the time of the photographs and the GPS data were kept the same based on the difference of the two kinds of time.With the common fields of the matched time

the spatial information obtained by GPS can be endowed to the photographs.Using RoboGEO software

one can export the data in various formats

such as the JPG file with the time

and the spatial information of latitude

longitude

and altitude displaying on the photographs and written into the Exif(a standard option for most digital cameras) header.Modern digital photograph management systems such as Picasa can use date

time

and location to organize and display photographs.One can also export files of tracks with located photographs to Google Earth using the KML format.With Google Earth software

one can display the track of the field work.Multiple photographs can be opened in Google Earth software and the field work and the scenery obtained by the survey can reappear.It is also possible to edit the KML file so that the photographs and data can be stored at a central web server and made available to users world wide.