updating a mosaic dataset

SLouq

Every 3 years, my work has a new flyover of my parish done and we get the imagery fils as panels on an external hard drive. In 2019, I created raster datasets from these panels and then created a mosaic dataset from the raster datasets. We just had a new flyover finished and will be getting new external hard drives with the updated imagery on them and I would like to updated the raster datasets and the mosaic dataset I created in 2019. How do I go about doing this? Is it just as simple as copying the new folders containing the new panels to the same location as the existing panels and overwriting them so the path my existing datasets will be maintained. Or do I need to build each raster dataset again?

Thanks 

Todd_Metzler

Hello,

The Mosaic Data Set (MDS) is your answer.  You do not need to use a Raster Dataset at all or create a new MDS.

1.  Copy received source orthoimagery to a folder location.

2.  Open one of the source files in a GIS client like ArcGIS Pro.

2a.  Check the image tile attributes and record them for reference later.

3.  Open your existing MDS

4.  Select   Add Rasters

4a.  In the Add Rasters To Mosaic Dataset window specify Input Data Folder > enter the folder location were you put your orthoimagery tiles.

5.  Set options as desired.

6. Run

In our MDS, I have added attributes that allow time control.  This helps users visualize your data above and beyond the use of ZOrder.  Here's what we use for time domain fields:

• DateBegin ( type: esriFieldTypeDate, alias: DateBegin, length: 8 )
• DateEnd ( type: esriFieldTypeDate, alias: DateEnd, length: 8 )
• DateIntBegin ( type: esriFieldTypeSmallInteger, alias: DateInBegin )
• DateIntEnd ( type: esriFieldTypeSmallInteger, alias: DateIntEnd )