How to harmonize two different contour data in ArcGIS 10?

Question

Hi guys, I'm having a difficulty in combining two different contour data from different sources and scale. i got my data from IFSAR having 1:10,000 scale with 5m contour interval and the other one from primary data in the field with 1:5,000 scale and 2m contour interval. What will be the right procedures to come up with DEM out of these two data? Thank you.

larryzhang · Answer

Besides, as a reference, the slides on DEM generation from stereo-pair RADARSAR 2 without GCPs are advised to read at http://earth.eo.esa.int/pub/polsarpro_ftp/POLinSAR2011/Wednesday26/Methods&TheoreticalModelling/2_Toutin_9_05.pdf

larryzhang · Answer

leslie,

In practice, you have an effective way to solve this challenge, i.e., to fill the gaps of the field data using IFSAR.

How? Please refer to Fill Voids in DEM

LeslieJawili · Answer

Your right about it, one of our consultants advised me to convert the contour lines into point data then combine the 2 data sets, convert it to TIN then re-contour or interpolate it with 5m contour interval. I'm not satisfied with the output because it produces a lot of curvatures/triangulated forms when it was converted to TIN data.

Is it possible to fill the gaps of the field data using IFSAR?