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Special Section Guest Editorial: Advances in Infrared Remote Sensing and Instrumentation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Strojnik, Marija Páez, G. Diana Isabel |
| Copyright Year | 2014 |
| Abstract | The term “remote sensing” has traditionally been applied to peaceful applications of space-based observations. The word “remote” could also imply noncontact and nondestructive, or noninterfering (sensing), especially when describing sensors. If you actually analyze the operation of the optical instruments, you realize that most of them function as “remote” in the sense that they do not interfere with the naturally occurring processes and the information is carried imperceptibly by electromagnetic radiation. Most optical instruments perform initially similar functions in the laboratory setting. Consequently, they are incorporated as remote sensing subsystems. In remote sensing satellites, they are coupled with a telescope whose function is to collect as much radiation as possible and bring it into the instrument to extract specific spatial, temporal, or spectral information about a distant object. In this sense, most remote sensing instruments are used for Earth remote sensing and in astronomical observations. The significant difference is that in the first case, the telescope or camera looks at the scene below, while in the second case, it looks at the space above or sidewise. This is particularly useful in the case of IR astronomy. Among the original remote sensing satellites launched in space in the 1970s, we could include imagers on the appropriately chosen orbits to provide as uniform and efficient coverage over the area of interest as feasible. The orbit design and the instantaneous field of view of the moving instrument are two critical additional parameters that contribute to making a traditional, Earth-based instrument a remote-sensing one. The movement of the instrument-carrying vehicle, be it a satellite, a plane, or a rocket, opened the possibilities for multispectral imaging, using initially just a few bands with beam splitters and filters, incorporating several separate channels, each with its own detector assembly. The 1980s brought significant technological developments. Detectors replaced film as the recording medium with the advent of widely available CCD (charge-coupled device) technology in the visible, and line and staring arrays in the IR. The capability of detecting large amounts of multispectral data paved the way for on-board spectroscopy, Fourier transform interferometry, multi- and hyper-spectral imaging, in addition to imaging and radiometry where the total amount of radiation is collected within a spectral band measured. All of these instruments are represented in the current special section, reflecting the continuing evolution of the instrumentation arising from improvements in diverse areas of technology. As the Earth surface and the space environment around it are believed to be changing, it has become of highest importance to monitor them. Scientists and engineers are developing modeling algorithms potentially to predict future, both on a short and long time scale. Some time scales are as long as decades (carbon dioxide distribution). Humans and improvements they make to their habitat also result in slow environmental changes. Remote sensing monitoring envisions a number of platforms from which to make observations, including satellites, space stations, and even the moon, or an orbiter circling a nearby planet such as Mars. Most of the time, we are interested in a planet in our own solar system; other times we want to examine an asteroid that ventured inside it. Does it have water or some precursors of life? Occasionally, we perform investigations outside our solar system, and fix our gaze into the cosmos to look at the distant stars searching for another Earth-like planet—to one day boldly go where no one has gone before. Just like NASA, the ESA (European Space Agency) is also launching satellites to monitor climate and weather patterns. At the time of this writing, their scientists and engineers are performing the last-minute tests in support of the Seas and Land Surface Radiometer, planned for a |
| File Format | PDF HTM / HTML |
| DOI | 10.1117/1.JRS.8.084901 |
| Volume Number | 8 |
| Alternate Webpage(s) | https://www.spiedigitallibrary.org/journalArticle/Download?fullDOI=10.1117/1.JRS.8.084901&isResultClick=False |
| Alternate Webpage(s) | https://remotesensing.spiedigitallibrary.org/journalArticle/Download?fullDOI=10.1117/1.JRS.8.084901&isResultClick=False |
| Alternate Webpage(s) | https://www.spiedigitallibrary.org/journalArticle/Download?fullDOI=10.1117/1.JRS.8.084901 |
| Alternate Webpage(s) | https://www.spiedigitallibrary.org/journals/Journal-of-Applied-Remote-Sensing/volume-8/issue-01/084901/Special-Section-Guest-Editorial--Advances-in-Infrared-Remote-Sensing/10.1117/1.JRS.8.084901.pdf |
| Alternate Webpage(s) | https://www.spiedigitallibrary.org/journalIssue/Download?DOI=10.1117/1.JRS.8.084901&downloadType=journal+article&fullDOI=10.1117/1.JRS.8.084901&isResultClick=True |
| Alternate Webpage(s) | https://neurophotonics.spiedigitallibrary.org/journalArticle/Download?fullDOI=10.1117/1.JRS.8.084901&isResultClick=False |
| Alternate Webpage(s) | https://doi.org/10.1117/1.JRS.8.084901 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
