BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT DTSTART:20210314T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20201101T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20201112T012639Z UID:ABFBED14-E790-4FFC-BCF8-A02D6C8C9D3A DTSTART;TZID=America/New_York:20201111T153000 DTEND;TZID=America/New_York:20201111T163000 DESCRIPTION:A talk from Distinguished Lecturer\, Prof. David Long.\n\nRemot e sensing is the study of the environment from a distance. Recent developm ents in satellite-based sensors and computer processing techniques offer u nique perspectives of our planet. Microwave remote sensing includes active (radars) and passive (radiometers) sensors.\n\nThis talk focuses on the a pplications of a class of active microwave remote sensors known as scatter ometers. Satellite scatterometers have been built and flown by several nat ions including\, the U.S.\, ESA\, India\, and China. Wind scatterometers a re satellite radars designed to measure near-surface vector winds over the ocean. The scatterometer does not directly measure the wind. Rather\, it measures the normalized radar backscatter (so) of the surface. Then\, from multiple so measurements\, the wind blowing over the ocean's surface is i nferred. Scatterometer wind measurements have wide application in air-sea interaction and weather observation. Wind scatterometers typically operate at one of two bands\, C (5.4 GHz) or Ku (13.4 GHz). Ku band is more sensi tive to wind\, but also to the adverse effects of rain. However\, this sen sitivity can be exploited to simultaneously estimate wind and rain.\n\nSca tterometers also collect so measurements over land and ice. While the low resolution (25 km) of scatterometer measurements can limit their utility i n land and ice studies\, reconstruction processing enables the generation of enhanced resolution so images from past and present scatterometers. Suc h enhanced resolution scatterometer images have been proven to be useful f or high resolution wind/rain estimation as well as in a variety of studies of polar ice and tropical vegetation. In particular\, enhanced resolution scatterometer observations have been used over land to study deforestatio n of tropical rain forest and desertification. Over the glaciated regions of Greenland and Antarctica\, the radar signal is very sensitive to meltin g conditions and can thus be used to global warming conditions. The contra st between ocean and ice scattering enables tracking of major Antarctic ic ebergs in all weather conditions. In this talk\, a brief overview of scatt erometer remote sensing is provided and a number of applications of microw ave remote sensing are described.\n\nSpeaker(s): Prof David Long\, \n\nBld g: Building 76\, Center for Imaging Science\, 54 Lomb Memorial Drivve\, Ro chester\, New York\, United States\, 14623\, Virtual: https://events.vtool s.ieee.org/m/241077 LOCATION:Bldg: Building 76\, Center for Imaging Science\, 54 Lomb Memorial Drivve\, Rochester\, New York\, United States\, 14623\, Virtual: https://e vents.vtools.ieee.org/m/241077 ORGANIZER:emmett@cis.rit.edu SEQUENCE:6 SUMMARY:Satellite Scatterometry: Winds\, Vegetation\, and Ice URL;VALUE=URI:https://events.vtools.ieee.org/m/241077 X-ALT-DESC:Description: <br /><p>A talk from Distinguished Lecturer\, Prof. David Long.</p>\n<p>Remote sensing is the study of the environment from a distance.&nbsp\; Recent developments in satellite-based sensors and compu ter processing techniques offer unique perspectives of our planet.&nbsp\; <strong><em>Microwave remote sensing</em></strong> includes active (radars ) and passive (radiometers) sensors. &nbsp\;</p>\n<p><strong>This talk foc uses on the applications of a class of active microwave remote sensors kno wn as <em>scatterometers</em></strong>.&nbsp\; Satellite scatterometers ha ve been built and flown by several nations including\, the U.S.\, ESA\, In dia\, and China.&nbsp\; W<em>ind scatterometers</em> are satellite radars designed to measure near-surface vector winds over the ocean.&nbsp\; The s catterometer does not directly measure the wind. &nbsp\;Rather\, it measur es the normalized radar backscatter (s<sup>o</sup>) of the surface.&nbsp\; Then\, from multiple s<sup>o</sup> measurements\, the wind blowing over t he ocean's surface is inferred.&nbsp\; Scatterometer wind measurements hav e wide application in air-sea interaction and weather observation.&nbsp\; Wind scatterometers typically operate at one of two bands\, C (5.4 GHz) or Ku (13.4 GHz).&nbsp\; Ku band is more sensitive to wind\, but also to the adverse effects of rain.&nbsp\; However\, this sensitivity can be exploit ed to simultaneously estimate wind and rain.</p>\n<p>Scatterometers also c ollect s<sup>o</sup> measurements over land and ice.&nbsp\; While the low resolution (25 km) of scatterometer measurements can limit their utility i n land and ice studies\, reconstruction processing enables the generation of enhanced resolution s<sup>o</sup> images from past and present scattero meters.&nbsp\; Such enhanced resolution scatterometer images have been pro ven to be useful for high resolution wind/rain estimation as well as in a variety of studies of polar ice and tropical vegetation.&nbsp\; In particu lar\, enhanced resolution scatterometer observations have been used over l and to study deforestation of tropical rain forest and desertification.&nb sp\; Over the glaciated regions of Greenland and Antarctica\, the radar si gnal is very sensitive to melting conditions and can thus be used to globa l warming conditions.&nbsp\; The contrast between ocean and ice scattering enables tracking of major Antarctic icebergs in all weather conditions.&n bsp\; In this talk\, a brief overview of scatterometer remote sensing is p rovided and a number of applications of microwave remote sensing are descr ibed.</p> END:VEVENT END:VCALENDAR