U.S. Geological Survey (USGS) 20050502 Unknown SDE raster digital data Server=orap02; Service=5165; User=raslib; Version=SDE.DEFAULT 2004_color_doqq_001m.lyr An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map. This task consists of two components, ADS40 digital image acquisition and natural color and color infrared digital orthophoto production, covering the South Florida Water Management District (SFWMD) in Florida. These data have been created as a result of the need for having geospatial data immediately available and easily accessible in order to enhance the capability of the USGS and the South Florida Water Management District (SFWMD). The bounding coordinates provided within the Spatial Domain section represent a rectangle covering the total area in which the project is located. The actual project boundary located within this area is comprised of areas delimited by the South Florida Water Management District (SFWMD) boundary. This task consists of two components, digital image acquisition and digital orthophoto production. The South Florida Water Management District (SFWMD) project area is comprised of approximately 17,789 square miles. A total of 1085 orthos were produced to cover this area. Aerial imagery was collected in panchromatic, Red, Green, Blue and Near Infrared which yielded a natural color and false color infrared version of the completed digital orthophotography. Imagery was collected at an approximate altitude of 23,600 feet above mean terrain. The ADS40 digital camera system used in this project incorporates the latest in sensor technology, optics, electronics, data transfer, and storage. The ADS40 imagery is generated from seven parallel sensor lines in the focal plane of a single lens system, three panchromatic (forward, nadir, backward), red, green, and blue lines placed next to each other, and one infrared. Each panchromatic channel consists of two lines, each with 12,000 pixels, staggered (shifted with respect to each other) by 0.5 pixels. The viewing angles and characteristics of the sensor are as follows - - Focal length 62.5mm - Pixel size 6.5mm - PAN 2 arrays 12,000 pixels each - R,G,B and NIR,R,G 12,000 pixels - Backward to nadir stereo angle -14.1 degrees - Near infrared to nadir stereo angle -2.05 degrees - Dynamic Range of CCD - 12-bits for all arrays For this dataset, the natural color and color infrared orthoimages were produced at 1.0-meter pixel resolution. The accuracy has been designed to meet NMAS for 12,000 maps. Each digital orthorectified quarter quad provides imagery for a nominal 3.75 by 3.75 minute area corresponding to the USGS quarter quad boundaries. The projected coordinate system is UTM (Zone 17) with a NAD83 datum. The naming convention is based on the state of Florida DOQQ naming convention. Deliverables include - - 24-Bit Natural Color in GeoTIFF format - 24-Bit False Color Infrared in GeoTIFF format - 48-Bit Natural Color in GeoTIFF format - 48-Bit False Color Infrared in GeoTIFF format en REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground. ground condition Complete Unknown -83.068717 -79.980168 28.501610 24.487618 -8448.550325 983741.065333 1515075.475530 60869.067841 None rectified imagery rectified image orthophoto Digital Orthophoto Quarter Quad (DOQQ) image map Natural Color DOQQ Color Infrared DOQQ False Color Infrared DOQQ Geographic Names Information System, Geographic Names Office, USGS, 523 National Center, Reston, VA 20192-0523 United States of America (USA) Florida FL US None None EarthData International, LLC Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535 Layer The digital imagery for each acquisition sortie is differentially rectified to produce orthophotography for the Red, Green, and Blue and near infrared channels at a resolution of 1.0-meter per pixel. The orthophoto mosaics are inspected for accuracy issues that fall in the following categories - - Aerotriangulation related - DSM related Accuracy issues will be investigated through review an correction of the DSM or triangulation adjustment. Once the imagery has passed quality control review, final radiometric adjustments are performed to create a uniform overall appearance. Compliance with the accuracy standard was ensured by the placement of photo identifiable ground control points and the collection of airborne GPS data. Using several tools that are part of the ISTAR workflow, the existing digital elevation model data from the USGS archive was ingested into the ISTAR workflow for use in the differential rectification of the updated DOQQs. The ISTAR correlation algorithm computes the X,Y,Z value for each DSM post utilizing every stereo angle that is available. A series of DSM files were created for each acquisition block, one for each stereo look angle. A mosaic was then created from the separate DSM files where the best vertical value for each posting was selected from all look angles compared against the aerotriangulation adjustment which is incorporated into the mosaic. EarthData then edited the surface to the level required to support the orthophoto production. An RMS value was calculated based on the imagery utilized in the production of the tile by comparing the AT X and Y coordinates. This value represents an estimate of the accuracy of the horizontal coordinate measurements in the tile expressed in meters. Compliance with the accuracy standard was ensured by the placement of photo identifiable ground control points and the collection of airborne GPS data. The horizontal accuracy of the orthorectified images is mainly determined by the accuracy of the aerotriangulation and digital surface model (DSM). For each rectified image (lift), an RMSE value for all of the standard errors of the tie/pass/control points located in that image (lift) and computed by the aerotriangulation solution was calculated. The DSM accuracy assessment was achieved by comparing the aerotriangulation-derived elevation with the elevation of the DSM. In addition, visual examination was employed to assess all tiles and its relative edge match. All results were examined for consistency and its compliance with the NMAS accuracy standard. 0.177248 Accuracy assessment determined by evaluating the horizontal accuracy obtained during the aerotriangulation process for each lift. 3001, Inc 20050502 Unknown model digital 20040226 20040301 ground condition GPS ground control 3001 Inc. established ground control to support the aerotriangulation process. A total of 15 points were surveyed to support the AT process. An additional 30 supplemental control points obtained during previous projects were used to support the AT process. U. S. Geological Survey 20050502 Unknown model The Florida Digital Elevation Models were provided by the USGS to support the production process. The DEMs were obtained from the USGS archives. digital 20050502 Publication Date digital surface model Used to provide ground elevations for the orthorectification process. EarthData International, LLC 20050502 Unknown remote-sensing image digital 20041118 20050209 Ground Condition imagery The digital imagery mission was composed of a total of 23 lifts. Imagery was obtained at an altitude of 23,600 feet above mean terrain. The mission was flown with a Leica ADS40 digital camera with ABGPS and IMU. Imagery was acquired on the following dates - Lift Date FL32304A 11/18/2004 FL32404A 11/19/2004 FL32504A 11/20/2004 FL32604A 11/21/2004 FL33804A 12/03/2004 FL34704A 12/12/2004 FL34804A 12/13/2004 FL00405A 01/04/2005 FL00705A 01/07/2005 FL00905A 01/09/2005 FL01005A 01/10/2005 FL01705A 01/17/2005 FL01705B 01/17/2005 FL01805A 01/18/2005 FL02405A 01/24/2005 FL02405B 01/24/2005 FL02405C 01/24/2005 FL02505A 01/25/2005 FL02605A 01/26/2005 FL03205A 02/01/2005 FL03605A 02/05/2005 FL03905A 02/08/2005 FL04005A 02/09/2005 Source Imagery - ADS40 Digital Camera Imagery. Control - Airborne GPS/IMU supplemented with photo identifiable field control Aerotriangulation - ISTAR software package Elevation Model - ISTAR software package Radiometric Balancing - ISTAR software package and COTS Software (PhotoShop). Orthorectification - ISTAR software package. Mosaic - ISTAR software package and Z/I Imaging OrthoPro software package. The following section describes the ISTAR digital image production sequence. This is a mature, stable workflow and incorporates all production components into an integrated series of tools to accomplish photogrammetric mensuration, aerotriangulation, elevation model development, ortho production and finishing. Production processes are fully documented in accordance with ISO9001 mandates. The following is a step-by-step description of the ISTAR workflow to develop digital orthophoto quarter quads to support the Florida DOQQ update program - Step 1 The unprocessed ADS40 data and accompanying GPS and IMU data for one or more sorties was downloaded from the portable hard disks and checked to verify that no files were corrupted and that all data could be downloaded. Digital aerial imagery that was used for this project includes the Red, Green, Blue, Near Infrared channels as well as the S1 pan, S2 pan and nadir green channels. Sample segments of the imagery were inspected in an uncorrected state to verify the integrity of each data sortie. Step 2 The GPS/IMU parameters for each sortie were optimized using the ground control points and the error calibration map. The horizontal and vertical positions of all ground control points in the block were observed in each channel (R,G,B, IR, R, G, S1 Pan, S2 Pan). Step 3 Aerotriangulation was accomplished using the CLB tool that is a component of the ISTAR process. The ground control, GPS and IMU information were ingested and tie points between strips were identified. Normally, only 3 tie points are needed between adjacent flight lines. Step 4 CLB produces a bundle adjustment for each data sortie. The results of the adjustment were verified through the development of a sub-sampled panchromatic mosaic for the data sortie. The mosaic was corrected using the aerotriangulation points only. This mosaic was inspected by the photogrammetric technician to identify any gross errors in the adjustment as well as the identification of any voids or image quality problems. Step 5 The existing digital elevation model data from the USGS archive was used to create the updated DOQQ map tiles. The data was inventoried and ingested into the ISTAR workflow for use in the differential rectification of the updated DOQQs. Step 6 The digital imagery for each acquisition sortie was differentially rectified to produce digital orthophoto mosaics in natural color and false color infrared renditions at a resolution of 1-meter per pixel. The orthophoto mosaics were inspected for accuracy issues that fall in the following categories. - Aerotriangulation related - DSM related Accuracy issues were investigated through review and correction of the DEM or triangulation adjustment. Once the imagery passed quality control review, final radiometric adjustments were performed to create a uniform overall appearance. The final DOQQ tiles were organized for nominal 3.75 by 3.75 minute areas corresponding to the USGS quarter quad boundaries and were clipped out with the specified overage of a minimum of 30 meters beyond the quarter quad boundaries. Imagery was output in the following renditions - - 24-bit natural color - 24-bit false color infrared - 48-bit natural color - 48-bit false color infrared 1. 8-bit natural color and color infrared DOQQs are being delivered as 24-bit GeoTIFF images. Each image was radiometrically balanced to adjacent DOQQs to the highest extent practically achievable given image collection conditions. The data is being delivered as two separate three-band images (Natural Color - Blue, Green, Red; Color Infrared - Green, Red, Near Infrared). 2. 16-bit color natural color and color infrared DOQQs are being delivered as 48-bit GeoTIFF images. The data is being delivered as two separate three-band images (Natural Color - Blue, Green, Red; Color Infrared - Green, Red, Near Infrared). This product is being delivered to support scientific analysis, therefore post processing will be limited to atmospheric modeling and CCD electronic normalization. GeoTIFF files will include the following GeoTIFF tags and keys - - Model Tiepoint Tag - Model Pixel Scale Tag - GT Model Type Geo Key - GT Raster Type Geo Key - Projected CST Type Geo Key - PCS Citation Geo Key - Proj Linear Units Geo Key Step 7 The completed digital orthophotos were checked for image quality. Minor artifacts were corrected using Adobe Photoshop in an interactive editing session. Digital files were assigned final names in accordance with the state of Florida DOQQ naming convention. Step 8 Project level and file level metadata describing the orthophoto production process was developed to support the task. File level metadata is being delivered in xml format. imagery, digital surface model, GPS ground control 20050502 Metadata imported. W:\programs\data_services\sfwmd_projects\USGS_2004_DOQQs\2004_doqq_metadata.xml 20050719 16420400 Metadata imported.C:\Temp\xml3E.tmp2005072109292100 Raster Pixel 443243 302420 1 3 8 FALSE JPEG pixel codes SDR Upper Left TRUE 3.280833 3.280833 Transverse Mercator 0.999941 -81.000000 24.333333 656166.666667 0.000000 row and column 3.280833 3.280833 survey feet D_North_American_1983_HARN Geodetic Reference System 80 6378137.000000 298.257222 GCS_North_American_1983_HARN NAD_1983_HARN_StatePlane_Florida_East_FIPS_0901_Feet 1.000000 Explicit elevation coordinate included with horizontal coordinates Land Boundary Information System - LABINS Web site - http://data.labins.org/2003/index.cfm Downloadable Data None 20051013 USGS REQUIRED: The person responsible for the metadata information. mailing address

EROS Data Center 47914 252nd Street

Sioux Falls SD 57198-0001 US 1-800-252-4547 1-605-594-6933 1-605-594-6589 custserv@usgs.gov Monday - Friday, 8:00AM - 4:00PM (Central TIme) FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time en http://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535 -83.068717 -79.980168 28.50161 24.487618 1 2004_color_doqq_001m.lyr -8448.550325 1515075.47553 60869.067841 983741.065333 1 009 ArcSDE Connection Server=orap02; Service=5165; User=raslib; Version=SDE.DEFAULT Layer 20051013 09353400 20051013 FALSE 09353400 20050721 09292100 Mosaic \\gisdata3\work\programs\data_services\sfwmd_projects\USGS_2004_DOQQs\data\QAedData\delivery6\24bit_RGB\q0707nw.tif;\\gisdata3\work\programs\data_services\sfwmd_projects\USGS_2004_DOQQs\data\QAedData\delivery6\24bit_RGB\q0707sw.tif;\\gisdata3\work\programs\data_services\sfwmd_projects\USGS_2004_DOQQs\data\QAedData\delivery6\24bit_RGB\q0708se.tif "Database Connections\raslib@GRASPDB.sde\RASLIB.DOQQ_2004_RGB_1M_JPG" LAST FIRST # # NONE 0 "Database Connections\raslib@GRASPDB.sde\RASLIB.DOQQ_2004_RGB_1M_JPG" {23E2756F-A2D3-47A6-8CD2-CF7EFB19484D} 20051013 dataset ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 NAD_1983_HARN_StatePlane_Florida_East_FIPS_0901_Feet