Data for Chicago WebCam LATITUDE: 41° 55´ N LONGITUDE: 87° 34´ W LOCATION: On the Harrison-Dever crib, approximately 3 miles offshore from the City of Chicago. Site online 03 Aug 2000 Web Cam: We are using a Sony SNC-Z20N camera working through a CDMA modem. The image is 736x480 and is updated every 60 minutes. The CDMA modem serves both the webcam and the met system. John Lane USDOC-NOAA-GLERL Marine Instrumentation Laboratory 4/6/06