Remote Sensing & GISAbstractOverviewGIS BasicsThe Importance of RSRS Methods in GISCoarser Resolution Satellite Sensors UsedSlide 8How data is extracted:Digitizing DataAir Photos: DOsRadar Data: DEMsSlide 13ApplicationsFuture of GIS & RS: Worldview IIssues of Remote Sensing & GIS in the FutureSourcesRemote Sensing & GISRemote Sensing & GISMichael CarmonMichael CarmonAbstractAbstractGeographic Information Systems (GIS) are a new and blossoming concept, and Geographic Information Systems (GIS) are a new and blossoming concept, and continue to grow in complexity and utility thanks in large part to the continue to grow in complexity and utility thanks in large part to the proceeding and continual development of Remote Sensing. Remote Sensing proceeding and continual development of Remote Sensing. Remote Sensing plays a large role in the enhancement of any GIS, and in most cases, allows plays a large role in the enhancement of any GIS, and in most cases, allows data to become much more relatable and useful for anyone. A GIS receives data to become much more relatable and useful for anyone. A GIS receives much of the data for its built-in layers from Remote Sensing platforms such much of the data for its built-in layers from Remote Sensing platforms such as satellites, radars and airplanes. Passive sensors contribute to imagery as satellites, radars and airplanes. Passive sensors contribute to imagery and data for land cover mapping, change detection, snow monitoring, and data for land cover mapping, change detection, snow monitoring, thermal changes and terrain modeling. Active sensors contribute heavily to thermal changes and terrain modeling. Active sensors contribute heavily to data for extremely accurate terrain models known as Digital Elevation data for extremely accurate terrain models known as Digital Elevation Models (DEMs). These large quantities of data can be geo-referenced and Models (DEMs). These large quantities of data can be geo-referenced and integrated into one large GIS, allowing a user to access a powerful amount integrated into one large GIS, allowing a user to access a powerful amount of information at one time with relative ease. And as remote sensing of information at one time with relative ease. And as remote sensing technology continues to increase in resolution and power, the data base will technology continues to increase in resolution and power, the data base will enlarge and increase the potential power of users of a Geographic enlarge and increase the potential power of users of a Geographic Information System.Information System.OverviewOverviewWhat is a GIS?What is a GIS?The Importance of Remote Sensing in The Importance of Remote Sensing in GIScienceGIScienceRS Methods Used in GIS Data AcquisitionRS Methods Used in GIS Data AcquisitionDigital Orthophotos & Satellite ImageryDigital Orthophotos & Satellite ImageryRadar Data: DEMsRadar Data: DEMsThe Future of GIS and Remote SensingThe Future of GIS and Remote SensingGIS BasicsGIS BasicsGeographic Information SystemGeographic Information SystemAllows the viewing and analysis of Allows the viewing and analysis of multiple layers of spatially related multiple layers of spatially related information associated with a information associated with a geographic region/locationgeographic region/locationBoth spatial and attribute (tabular) Both spatial and attribute (tabular) data are integrateddata are integratedThe widespread collection and The widespread collection and integration of imagery into GIS has integration of imagery into GIS has been made possible through remote been made possible through remote sensingsensingWith the increasing technological With the increasing technological development of remote sensing, the development of remote sensing, the development of GIS has development of GIS has simultaneously acceleratedsimultaneously acceleratedThe Importance of RSThe Importance of RSLarge amounts of data needed, and Remote Sensing can provide itLarge amounts of data needed, and Remote Sensing can provide itReduces manual field work dramaticallyReduces manual field work dramaticallyAllows retrieval of data for regions difficult or impossible to reach:Allows retrieval of data for regions difficult or impossible to reach:Open oceanOpen oceanHazardous terrain (high mountains, extreme weather areas, etc.)Hazardous terrain (high mountains, extreme weather areas, etc.)Ocean depthsOcean depthsAtmosphereAtmosphereAllows for the collection of much more data in a shorter amount of Allows for the collection of much more data in a shorter amount of timetimeLeads to increased land coverage ANDLeads to increased land coverage ANDIncrease ground resolution of a GISIncrease ground resolution of a GISDigital Imagery greatly enhances a GISDigital Imagery greatly enhances a GISDIRECTLY: Imagery can serve as a visual aidDIRECTLY: Imagery can serve as a visual aidINDIRECTLY: Can serves as a source to derive information such as…INDIRECTLY: Can serves as a source to derive information such as…Land use/land coverLand use/land coverAtmospheric emissionsAtmospheric emissionsVegetationVegetationWater bodiesWater bodiesCloud coverCloud coverChange detection (including sea ice, coastlines, sea levels, etc.)Change detection (including sea ice, coastlines, sea levels, etc.)RS Methods in GISRS Methods in GISPassive Sensors: Passive Sensors: LandsatLandsat TM TMAVHRRAVHRRSpotSpotMODISMODISIKONOSIKONOSQuickbirdQuickbirdPassive Systems: Air Photography (DOs)Passive Systems: Air Photography (DOs)Active Sensors: RadarActive Sensors: RadarDEMsDEMsCoarser Resolution Satellite Sensors UsedCoarser Resolution Satellite Sensors UsedLANDSAT Thematic MapperGood for regional coverage30m MS resolution15 m panchromatic resolutionMost Common Use:Land Cover/Land Use MappingMODIS36 spectral bandsMost Common Uses:Cloud/Aerosol PropertiesOcean ColorAtmospheric Water VaporSea/Atmospheric TemperaturesHigher Resolution Satellite Sensors UsedHigher Resolution Satellite Sensors UsedQuickbird2.5 m multispectral resolution61 cm (~2 ft.) panchromatic resolutionIKONOS4 m visible/infrared resolution1 m panchromatic resolutionMOST COMMON USES FOR HIGH RESOLUTION:Accurate Base MapsInfrastructure MappingDisaster Assessment (Smaller Scale)How data is extracted:How data is extracted:Layers such as roads (yellow) and rivers (blue) can be easily