Also missing from the Wikipedia summary table is the new generation of micro- and nano-satellite space imaging providers like Skybox and Planet Labs. A 2014 article in IEEE Spectrum entitled "9 Earth-Imaging Startups to Watch"  suggests that while "there's at most two dozen nonmilitary satellites doing Earth imaging ... Five years from now [that is, in 2020] there might be 200 or more."

Multispectral imagingarchaeology

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Christopher Lavers' 2013 article Origins of High-Resolution Civilian Satellite Imaging - Part 2 profiles several commercial systems, including SPOT, IKONOS, OrbView, and GeoEye. Characteristics of these and other contemporary sensing systems are documented at Wikipedia's Remote Sensing Satellite and Data Overview page. Not included in that page is DigitalGlobe's WorldView-3 sensor, which launched in August 2014. WorldView-3 provides panchromatic imaging at 31 cm GSD and 1.24 m multispectral. Datasheets for WorldView-3 and other DigitalGlobe sensors are available at its Satellite Information page. Coming up next in this chapter is a site visit to DigitalGlobe.

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The spatial resolution of the Landsat 8 data is comparable to that of the Landsat 7 data. In regard to spectral resolution, six of the Landsat 8 bands have spectral sensitivities comparable to Landsat 7, but they have been refined somewhat. For example, the NIR band has been fine-tuned to decrease the effects of atmospheric absorption. The spectral sensitivities of Landsat 7 and 8 are compared in the figure below.

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Author: David DiBiase, Senior Lecturer, John A. Dutton e-Education Institute, and Director of Education, Industry Solutions, Esri. Instructors and contributors: Jim Sloan, Senior Lecturer, John A. Dutton e-Education Institute; Ryan Baxter, Senior Research Assistant, John A. Dutton e-Education Institute, Beth King, Senior Lecturer, John A. Dutton e-Education Institute and Assistant Program Manager for Online Geospatial Education, and Adrienne Goldsberry, Senior Lecturer, John A. Dutton e-Education Institute; College of Earth and Mineral Sciences, The Pennsylvania State University.

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Multispectralimages in remote sensing

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The checkerboard calibration only requires two planes, and only the corner points of the black and white grids are needed to mark, which is much easier than ...

At this time, we are still fundraising for phase two which will require gifts of all sizes to complete the renovation. Gifts can be made HERE. If you have any questions or would like more information about the Edmunds Center renovation project, please contact Associate Athletic Director for External Operations, Heather McCormick at hmccormick@stetson.edu Stetson Athletics and the university would like to thank all supporters and donors who have been gracious enough to support our efforts to make the Edmunds Center into a redefined events and entertainment space for Volusia County. Full renovations are expected to be completed by Summer 2025. About Stetson University Athletics: Stetson University's Athletics Program is driven by a shared purpose. It is what inspires, motivates and binds us together. More than a task, a reason for being. THE HATTER PURPOSE is to create and provide an experience of a lifetime through teamwork and relationships to achieve excellence. This purpose is achieved through five Core Values: Communication, Integrity, Excellence, Value People and Commitment. To learn more about the HATS program and our Core Values, visit GoHatters.com/HATS.

The John A. Dutton Institute for Teaching and Learning Excellence is the learning design unit of the College of Earth and Mineral Sciences at The Pennsylvania State University.

For the community, the new Edmunds Center will provide a gathering space for youth camps, musical concerts, and other events. In the past, the Edmunds center has hosted Jay Leno, Don McLean, and Hank Williams Junior. The new expansion will present new opportunities for performers and musical acts to inspire and connect with the West Volusia community.

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Characteristics of the AVHRR and MODIS sensors are documented at Wikipedia's Remote Sensing Satellite and Data Overview page.

Some of the earliest space imaging platforms included multispectral sensors. One of those, which you explored a little earlier, is the Landsat program. Other U.S. government programs we'll consider briefly are AVHRR and MODIS.

Landsat satellites 1-5 (1972-1992) carried a four-band Multispectral Scanner (MMS) whose spectral sensitivity included visible green, visible red, and two near IR wavelengths. A new sensing system called Thematic Mapper (TM) was added to Landsat 4 in 1982. TM featured higher spatial resolution than MSS (30 meters in most channels) and expanded spectral sensitivity (seven bands, including visible blue, visible green, visible red, near-infrared, two mid-infrared, and thermal infrared wavelengths). An Enhanced Thematic Mapper Plus (ETM+) sensor, which included an eighth (panchromatic) band with a spatial resolution of 15 meters, was onboard Landsat 7 when it successfully launched in 1999.

The preceding page on early space imaging systems focused on panchromatic photographs and images. However, a key takeaway from this chapter is that multispectral remote sensing enables analysts to differentiate objects that are hard to tell apart in the visible band. This page considers characteristics and applications of some of the most important multispectral sensing systems operated by government agencies as well as private commercial firms.

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Penn State Professional Masters Degree in GIS: Winner of the 2009 Sloan Consortium award for Most Outstanding Online Program

NASA's Landsat Data Continuity Mission (LDCM) launched the Landsat 8 satellite in February 2013. The satellite payload includes two sensors, the Operational Land Imager (OLI) and the Thermal Infrared Sensor (TIRS).

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First launched in 1999, NASA's 36-band Moderate Resolution Imaging Spectroradiometer (MODIS) sensor has superseded AVHRR for many applications, including NDVI calculations for vegetation mapping.

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AVHRR sensors measure electromagnetic energy within five spectral bands, including visible red, near infrared, and three thermal infrared. The visible red and near-infrared bands are particularly useful for large-area vegetation monitoring. The Normalized Difference Vegetation Index (NDVI), a widely used measure of photosynthetic activity that is calculated from reflectance values in these two bands, is discussed later.

Stetson Cheer, Cross Country, and Volleyball will also benefit from the updates with new locker rooms, and amenities to improve the game/race day experience for the Hatters as well as giving each team a proper space to call their own.

Building off the excitement of a successful 2023-2024 basketball season which saw the Women make the NIT and the Men's team make it to March Madness this new home of Hatter basketball is sure to pave the way for future success. New locker rooms will enhance the student athlete experience and provide coaches with new resources and amenities to boost player performance and recovery.

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Characteristics of the Landsat 5 TM and Landsat 7 ETM+ - including orbital height, spatial resolution, pass over time, spectral coverage, and data access and uses - are documented at Wikipedia's Remote Sensing Satellite and Data Overview page.

While characteristics of Landsat 8 are documented at and is documented at Wikipedia's Remote Sensing Satellite and Data Overview page, the following table outlines scientific applications associated with each sensor band.

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Another longstanding U.S. remote sensing program is AVHRR. The acronym stands for "Advanced Very High-Resolution Radiometer." AVHRR sensors have been onboard sixteen satellites maintained by the National Oceanic and Atmospheric Administration (NOAA) since 1979. The data the sensors produce are widely used for large-area studies of vegetation, soil moisture, snow cover, fire susceptibility, and floods, among other things.

Landsat 7 is still collecting data. Landsat 8 orbits at the same altitude as Landsat 7. Both satellites complete an orbit in 99 minutes, and complete close to 14 orbits per day. This results in every point on Earth being crossed every 16 days. But, because the orbits of the two satellites are offset, it results in repeat coverage every 8 days. Approximately 1000 images per day are collected by Landsat 7 and Landsat 8 combined. That is almost double the images collected when Landsat 5 and Landsat 7 were operating concurrently.

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