Reading Satellite Images . Use a globe or basketball to represent Earth and some string or yarn to represent the ground path of an orbit. Select two volunteers: one to choose a location to view and a second to hold the globe and rotate it slowly eastward. In order to keep the location in constant view, the first volunteer will need to orbit the globe as it spins. Explain that satellites whose orbits keep them over the same ground position are in synch with Earth’s rotation, so they are calledgeosychronoussatellites.

Ask the class how long such a satellite would take to orbit Earth (answer: 2. How To Know If Sql Server Native Client Is Installed Flooring. Note: Geosychronous orbits are located about 2. Equatorial orbit. Ask volunteers to use yarn to demonstrate the ground path of a satellite orbiting over the equator. For each orbit, the yarn should encircle the globe once completely.

Explain that some satellites in equatorial orbits only take 9. Earth. Ask the class how many times the yarn would wrap around the globe in one 2. Polar orbit. To demonstrate the ground path of a polar orbit, volunteers should stretch the yarn from the top side at the north pole to the bottom side at the south pole.

They should continue stretching the yarn underneath the globe and up the other side, returning to the north pole as the globe rotates. This may take some practice. Download Anime Fairy Tail Subtitle Indonesia Episode 108 Of Nashville.

To keep the yarn from slipping off, the volunteers may need to affix the yarn to the north pole with a piece of tape. As the volunteers continue through several globe spins, the class should begin to see that, over time, a satellite with a polar orbit will cover the entire Earth. Radar Altimetry with a Shoebox. Satellite radar works by emitting a signal to the ground and measuring the time it takes to return to the satellite. The measurements allow scientists to calculate the altitude of surface features on the ground regardless of the amount of cloud cover. Have students work in groups to prepare a mini- landscape in a shoebox. They should distribute some sand, rocks, and dirt in the bottom of the shoebox and tape the lid on securely.

When ready, groups should exchange boxes (carefully, without shifting the landscape), with instructions to take measurements of the landscape and produce a map of it without actually opening the box. Using a ruler and pencil, each group should draw a pattern on the top of the box indicating where they will poke small holes to take measurements. These holes are calleddata points. The holes should be evenly spaced, and the pattern should include enough holes to get an accurate reading of the content of the box. A grid works well, but students may select any configuration they think will provide accurate readings.

After the box top is marked, each hole should be carefully poked to allow only a thin dowel rod to pass through (long drinking straws can be used instead of dowels). To take a measurement, students should insert the dowel just until it meets resistance, being careful not to press down too hard. At that point, students should make a mark on the dowel, remove it from the box, and measure the length from the mark to the end of the dowel to get a distance reading from the box top to the landscape. Note: Taller features will yield shorter measurements, so this measurement will need to be subtracted from the total height of the box to reveal the actual height of the landscape. Once all the measurements have been made, each group should produce a topographic map showing the data points and connecting points with the same measurements. This would allow the map to reveal surface features. Maps can be color- coded to bring out contrasting features in the landscape.

2 Satellite Remote Sensing and GIS Applications in Agricultural Meteorology agricultural cropping and management decisions, irrigation scheduling. Cover, Title Page, Forward, and Table of Contents

Microwave Remote Sensing There are some remote sensing satellites which carry passive or active microwave sensors. The active sensors emit pulses of microwave.

Electronic component data, general information and tutorials, about electronic components from the resistor, capacitor, semiconductor including the pn junction or. 2016 Impact Factor: 1.724 ©2017 Thomson Reuters, 2017 Journal Citation Reports® Visit Remote Sensing Letters.

After the maps are completed, each group should open their box lid and compare the map to the real thing. As a class, discuss sources of error and explain what adjustments could be made to increase the accuracy of the measurements.