Author Archives: Seelye Martin

About Seelye Martin

Seelye Martin received his Ph.D. in engineering mechanics from Johns Hopkins University in 1967 then spent two years as a research associate in the Department of Meteorology at the Massachusetts Institute of Technology. In 1969 he took up a position in the School of Oceanography at the University of Washington where he is now an Emeritus Professor. Beginning in 1987, he taught courses on remote sensing of the oceans. Professor Martin has been involved with passive microwave, visible/infrared and radar ice research since 1979, and has served on a number of NASA and NOAA committees and panels involving remote sensing and high latitude processes. He has made many trips to the Arctic for research on sea ice properties and oceanography. From 2006-2008, he worked at NASA Headquarters as Program Manager for the Cryosphere, where he also served as program scientist for the ICESat-1 and ICESat-2 missions. After leaving Headquarters, from 2009 -2012, he worked in a variety of roles for the NASA high-latitude IceBridge remote sensing aircraft program. For this work, in 2012 he was awarded the NASA Exceptional Public Service Medal.

A new wind constellation: the Cyclone Global Navigation Satellite System (CYGNSS)

This is a new concept for scatterometry, using the reflection of GPS signals from the ocean surface to study severe storms and cyclones. CYGNSS is a constellation of eight micro-satellites that will make accurate measurements of ocean surface winds in order … Continue reading

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K-band Radar Interferometric Topographic Measurements with GLISTIN: dial-in seminar on Thursday, May 21

This seminar might be of interest to readers working with space borne radars: The NASA Cryo Remote Sensing from Space (CRSS) webinars resume this week after a longer-than-planned hiatus. Please join us on Thursday, May 21, at 3:00 PM EDT. Scott Hensley … Continue reading

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What would happen if you put a smart phone into orbit?

Consider a smartphone: it has a camera, GPS, radio transmitter/receiver and a fair bit of computer memory. What would happen if you put it into orbit? Could it serve as a satellite? In 2010, a group of engineers at the … Continue reading

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New satellite AltiKa radar could find 100,000 underwater mountains

“This article in Science, by Eric Hand,  describes the use of the French AltiKa altimeter on the Indian SIRAL satellites to map the location of seamounts. A detailed account is given at the following link.

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A question from a reader about the Rayleigh criterion

Question from a reader: I am working my way through “An Introduction to Ocean Remote Sensing” and I have a question on the Rayleigh Criterion, page 73, equation (3.31) This gives the surface resolution of the human eye as 0.2 … Continue reading

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The SSALTO/DUACS Multimission Altimeter Processing System

The French SSALTO/DUACS multimission altimeter processing system combines data from all altimetric satellites to produce a near-global product of absolute and relative sea surface height. SSALTO stands for Segment Sol multi-missions dALTimetrie, d’orbitographie et de localisation precise; DUACS stands for … Continue reading

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Air Force is building a new radar on Kwajalein Atoll to track space debris

(generic image of phased-array radar) (From Science, 9 January 2015, article by Ilima Loomis) “An estimated 500,000 pieces of space junk—old satellites, rocket parts, debris from collisions—swarm in orbit around Earth. Much of it is potentially deadly: NASA officials say … Continue reading

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