I am trying to mosaic the NED data (30mt resolution) for more than half of the USA. At first, I mosaic to smaller parts and when I try mosaicing..it gives a lot many gaps as given in the picture (attached). Please help me. Thanks Raj
I am using ArcGIS10. Using 'Mosaic to New Raster' tool for mosaicking my data. I also tried "InRaster1" + "InRaster2" + "InRaster3"...oops it didnot work -> (Robert LeClair Esri-Denver, had given this suggestion to someone on the forum dated 04-14-2011 02:59 PM). Please help me in mosaicing the data. Thanks in advance Raj
Please help me in finding out the solution for this kind of problem. I never had this kind of problem with earlier versions of ArcGIS. Thanks in advance Raj
Have you tried creating a mosaic dataset? This is a faster mosaicking approach and provides further functionality. Once the mosaic dataset is created you can adjust the mosaic operator by going to the properties of the mosaic dataset > Mosaic tab > Mosaic Operator.
Thank you for rendering your immense help. However, the new problem is ...see in the attachment I did exactly the same way it was told. I created a geodatabase and created mosaic data set after that, I added the arcgis grid files to it..the result is..attached. Please help me in fixing this problem. Thanks Raj
Did you calculate statistics and build overviews for the mosaic dataset? You can do this by right-clicking on the mosaic dataset in ArcCatalog > Calculate Statistics. If this is a large dataset I would recommend specify a large skip factor (i.e. 15 for the columns and rows). Once statistics are calculated you can build overviews by right-clicking on the mosaic dataset > Build Overviews. Accept the defaults and click OK.
It is around 1Tb data. I started calculate statistics and I did skip 15 in row and columns. The process did show sometime and stopped the showing the status. assuming the data set is done calculation of statistics, I right clicked to build overlay and the option is not shown. May be the process is still working.. Please help me. Thanks in advance Raj
I did exactly as said like calculate statistics and build overviews for the mosaic dataset after creating mosaic dataset using geodatabase. The problem is still there. I also tried to "mosaic" to a target raster in the tool box but some tiles in the resultant mosaic are missing. Please help me. Why it is becoming difficult to fix this problem - Is there any data space constraint in the ArcGIS? My system is 64 bit with 6 gb RAM and 26 Tb Hard drive. Thank you in advance. Raj
I have all the NED data; both the 30m and the 10m stuff. Please do not struggle to send this vast amount of data over the wire...
I have succesfully created mosaic datasets for both of these resolutions. It is recommended that you build overviews first, then statistics. This way the statistics are built from the overview and takes less processing time. From start to finish, it took me 5 hours to build my 10m NED data Mosaic Dataset for the lower 48 plus Hawaii.
My source rasters are in GCS_North_American_1983, while I created my Mosaic Dataset in North America Equidistant Conic (NAD83). Attached is the 10m elevation data (published as a service and being consumed in ArcMap), as well as a hillshade I made of service using the Image Analysis Window.
I want to take this opportunity to point you to some documentation that was recently added to the Online Help System. Its a 3 part guide.
I'm running Windows Server 2008 R2 64 bit with 6GB RAM, using Intel Xeon W3550 @ 3.07GHz, and the NED data is local to my machine which is why it could build in just 5 hours.
Please review the links related to managing elevation data.
I think your initial problem with those gaps was due to some sort of projection issue. I personally would forget that workflow and definitely go with Mosaic Dataset for managing your NED data.
I also tried "InRaster1" + "InRaster2" + "InRaster3"...oops it didnot work -> (Robert LeClair Esri-Denver, had given this suggestion to someone on the forum dated 04-14-2011 02:59 PM).
Please help me in mosaicing the data.
Thanks in advance
Raj
Thanks in advance,
Raj
Thanks in advance
Raj
Is there any other thing?
Thanks in advance
Raj
However, the new problem is ...see in the attachment
I did exactly the same way it was told.
I created a geodatabase and created mosaic data set after that, I added the arcgis grid files to it..the result is..attached.
Please help me in fixing this problem.
Thanks
Raj
Attachments
Please help me.
Thanks in advance
Raj
Thank you in advance.
Raj
Attachments
I am sorry. Its NED Data from http://datagateway.nrcs.usda.gov/.
I have all the NED data; both the 30m and the 10m stuff. Please do not struggle to send this vast amount of data over the wire...
I have succesfully created mosaic datasets for both of these resolutions. It is recommended that you build overviews first, then statistics. This way the statistics are built from the overview and takes less processing time. From start to finish, it took me 5 hours to build my 10m NED data Mosaic Dataset for the lower 48 plus Hawaii.
My source rasters are in GCS_North_American_1983, while I created my Mosaic Dataset in North America Equidistant Conic (NAD83). Attached is the 10m elevation data (published as a service and being consumed in ArcMap), as well as a hillshade I made of service using the Image Analysis Window.
I want to take this opportunity to point you to some documentation that was recently added to the Online Help System. Its a 3 part guide.
- Managing elevation data: Part 1: About elevation data
- Managing elevation data: Part 2: Design and data management plan
- Managing elevation data: Part 3: Workflow steps
I'm running Windows Server 2008 R2 64 bit with 6GB RAM, using Intel Xeon W3550 @ 3.07GHz, and the NED data is local to my machine which is why it could build in just 5 hours.Please review the links related to managing elevation data.
I think your initial problem with those gaps was due to some sort of projection issue. I personally would forget that workflow and definitely go with Mosaic Dataset for managing your NED data.
Regards,
Eric
Attachments