From: hogrefek@geo.oregonstate.edu Date: May 4, 2009 5:56:07 PM PDT To: Joyce Miller Cc: Scott Ferguson , John Rooney , Jonathan Weiss , Frances Lichowski , Tomoko Acoba , Deepsea , Tim Battista Subject: Rose Atoll Deliverable This one was a challenge to work with due to the severe reflection of the super bleach white sand/coral rubble in the eastern part of the atoll causing very positive (i.e. not depth) derived figures.  The algae scar and the western reef crest also causes some pretty severe depth overestimate due to absorption of the green band.  I also think the high turbidity in the lagoon (that I recall diving in) causes issues.  I think such issues are more apparent in this product due to the really good multibeam coverage ? for the most part only the super shallow range (for which we?ve seen pretty persistent issues) needs to be filled. Having said all of that, the products are quite good.  I've provided four final products because in order to provide a choice between statistical accuracy and terrain representation in the shallows. In the zip file you will find: 2 MS Word files: Rose_ErrorAnalysis Hogrefe_Invoice_050409_Rose 4 ESRI Grid files (in their own folder): rosedball2: final mosaic of derived bathy products integrated using method focused on best statistical accuracy. rosedball3: final mosaic of derived bathy products integrated using method focused on best terrain representation (negative impact to statisitcal accuracy) rosedb2mb: mosaic of multibeam sonar grid and the rosedball2 mosaic. rosedb3mb: mosaic of multibeam sonar grid and the rosedball3 mosaic. 4 Text (metadata) files: RoseDBall2_metadata RoseDBall3_metadata RoseDB2MB_metadata RoseDB3MB_metadata 21 PDF files: Rose351_DB: Image Rose351, Product DB, derived with original MLR variables Rose351_DB1: Image Rose351, Product DB1, derived with Y-intercept reduced 1m Rose351_DB2: Image Rose351, Product DB2, derived with Y-intercept reduced another 1m Rose351_DB3: Image Rose351, Product DB3, derived with Y-intercept reduced another 1m Rose351_DB4: Image Rose351, Product DB4, derived with Y-intercept reduced another 1m Rose351_DB5: Image Rose351, Product DB5, derived with Y-intercept reduced another 1m Rose351_DB6: Image Rose351, Product DB6, derived with Y-intercept reduced another 1m Rose351_DB7: Image Rose351, Product DB7, derived with Y-intercept reduced another 1m Rose351_DB8: Image Rose351, Product DB8, derived with Y-intercept reduced another 1m Rose351_DB9: Image Rose351, Product DB9, derived with Y-intercept reduced another 1m Rose351_DB10: Image Rose351, Product DB10, derived with Y-intercept reduced another 1m Rose351_DB11: Image Rose351, Product DB11, derived with Y-intercept reduced another 1m Rose351_DB12: Image Rose351, Product DB12, derived with Y-intercept reduced another 1m Rose351_DB13: Image Rose351, Product DB13, derived with Y-intercept reduced another 1m Rose351_DBall2: Product DBall2, All 14 products integrated using method focused on best statistical accuracy but sacrificing terrain representation. Rose351_DBall2_error: Error grid (Error = multibeam bathy - derived bathy) Rose351_DBall3: Product DBall3, 8 products integrated using method focused on best terrain representation but sacrificing statistical accuracy. Rose351_DBall3_error: Error grid (Error = multibeam bathy - derived bathy) Rose351_DB2MB: Mosaic of multibeam and Rose351_DBall2 Rose351_DB3MB: Mosaic of multibeam and Rose351_DBall3 Rose_AddCoverage: Basically the DB3/MB mosaic with the derived bathy highlighted