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1 edition of Satellite radar altimetry over ice found in the catalog.

Satellite radar altimetry over ice

Satellite radar altimetry over ice

  • 338 Want to read
  • 26 Currently reading

Published by National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division in Washington, D.C .
Written in English

    Subjects:
  • Sea ice -- Antarctica -- Remote sensing.

  • Edition Notes

    StatementH. Jay Zwally ... [et al.].
    SeriesNASA reference publication -- 1233.
    ContributionsZwally, H. Jay., United States. National Aeronautics and Space Administration. Scientific and Technical Information Division.
    The Physical Object
    Paginationv. :
    ID Numbers
    Open LibraryOL17659708M

    altimeter (ăl-tĭm′ĭ-tər) n. An instrument for determining elevation, especially an aneroid barometer used in aircraft that senses pressure changes accompanying changes in altitude. [Latin altus, high; see al- in Indo-European roots + -meter.] al′timet′ric (ăl′tə-mĕt′rĭk) adj. altim′etry n. altimetry (ælˈtɪmɪtrɪ) n.   To date, these variations are primarily assessed by global or regional atmospheric modelling. Satellite altimetry and satellite gravimetry over the ice sheet provide complementary observations of the related volume and mass effects, respectively. Yet, so far the interannual signal contents of these observations have not been extensively by: Updating Landsat Satellite-Derived Bathymetry Procedure in the IHO-IOC GEBCO Cook Book. Hydro (). Seasonal Variability of the Red Sea, from Satellite Gravity, Radar Altimetry, and in Situ Observations. Journal of Geophysical Assessment of Radar-Derived Snow Depth over Arctic Sea Ice. Journal of Geophysical Research-Oceans.   The atlas consists of topographic maps derived from satellite radar altimetry (Geosat and ERS-1 data). Radar Measurement Principles.- (B.3) Analysis of Satellite Radar Altimeter Data over Ice Sheets and Glaciers.- (B) Problems and Methods of Mapping Ice Surface Elevation.- (B) Derivation of Ice Surface Roughness and Morphology Author: Ute Christina Herzfeld.


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Satellite radar altimetry over ice Download PDF EPUB FB2

More recently satellite radar altimetry has been utilized to map precise changes in the thickness of the polar ice sheets and floating sea ice.

Launched Apthe European Space Agency's CryoSat-2 (Fig. ) satellite carries a synthetic aperture radar (SAR)/interferometric radar altimeter (SIRAL), which has capabilities to measure.

The Cryospheric Sciences Branch of the Hydrospheric and Biospheric Sciences Laboratory of NASA/GSFC under the direction of Dr. Jay Zwally with contractor support from SGT,inc. has processed satellite radar ice altimetry over the continental ice sheets and surrounding sea ice to calculate surface elevations.

Data from SeaSat, GeoSat, GFO, ERS-1, ERS-2, ENVISAT and CryoSat-2. Get this from a library. Satellite radar altimetry over ice. [H Jay Zwally; United States. National Aeronautics and Space Administration.

Scientific and Technical Information Division.;]. Satellite remote sensing, in particular by radar altimetry, is a crucial technique for observations of the ocean surface and of many aspects of land surfaces, Satellite Altimetry Over Oceans and Land Surfaces book. This book provides a state-of-the-art overview of the satellite altimetry techniques and related missions, and reviews the Cited by: Satellite Radar Altimetry over Ice, Volume.

2: User's Guide for Greenland Elevation Data from Seasat, July NASA Reference Publication. Satellite Radar Altimetry_ over Ice, Volume 4: User's Guide for Antarctic Elevation Data from Seasat, July NASA Reference Publication.

Volume 3 will be the Antarctic equivalent of Volume 1. to − ± 23 m over Greenland and to ± 26 m over Antarctica. Index Terms—Altimetry, ice, laser measurements, radar altime-try, remote sensing.

INTRODUCTION S ATELLITE altimetry over the continental ice sheets has proven to be a valuable tool in studying decadal ice sheet mass balance changes by yielding measurements of elevationFile Size: KB.

Radar Altimetry Satellites bouncing thousands of radar pulses per second off Earth's surface and recording how long they take to return to orbit is a tried and tested method of charting the contours of our planet.

the lateral extent of sea ice and the altitude of large icebergs above sea-level, the topography of land and ice sheets and even. The basic concept of radar altimetry is very simple. To a first approximation the height h of the satellite above the surface is given by h = ct/2, where c is the speed of light and t is the round-trip time for a radar pulse to the surface at nadir and back.

ABSTRACT BOOK 25 Years of Progress in Radar Altimetry Workshop September Ponta Delgada Azores Last update: 19 October Radar altimetry. A radar altimeter uses the round-trip flight-time of a microwave pulse between the satellite and the Earth's surface to determine the distance between the spacecraft and the surface.

From this distance or height, the local surface effects such as tides, winds and currents are removed to obtain the satellite height above the geoid.

In order to investigate the relationship between surface slope and the discrepancy between satellite and airborne altimetry, we have compared all the averaged ATM points from the season (covering the northern half of the ice sheet, cf. Fig. 1) with those interpolated from the ERS-1/Geosat SRA data order to avoid introduction of additional errors, a simple inverse distance Cited by: 5.

Altimetry is basically a technique for measuring height. Satellite radar altimetry measures the time taken by a radar pulse to travel from the satellite antenna to the surface and back to the satellite receiver.

Moreover, this measurement yields a wealth of other information that can be used for a wide range of applications. How it works; Data flow ; Future technology improvements. "Satellite Altimetry Over Oceans and Land Surfaces is the new reference textbook on satellite altimetry that includes contributions from many of the leading experts in the discipline.

This book includes an entire chapter on coastal altimetry, Satellite Altimetry in Coastal Regions, which reviews the many technical improvements (including 5/5(1).

"Herzfeld’s book presents a new series of maps of Antarctica derived from satellite radar altimeter data showing topography of the ice/snow surface. This is therefore a valuable contribution to Antarctic studies. This book is an important contribution and groups working in glaciology and remote sensing of Cited by: 4.

Rationale for Radar Altimetry over the oceans • Climate change •oceans are a very important H. Snaith – A short course on Altimetry. 7 Basic Principles • The altimeter is a radar at vertical incidence • The signal returning to the satellite is from quasi-specular reflection • Measure distance between satellite and.

> How altimetry works Altimetry satellites basically determine the distance from the satellite to a target surface by measuring the satellite-to-surface round-trip time of a radar pulse.

However, this is not the only measurement made in the process, and a lot of other information can be extracted from altimetry. Satellite altimetry measures the global sea surface height (SSH), which has been used in geodesy to address a wide range of scientific questions, such as the determination of the marine gravity field and mean sea surface (Chelton et al., ; Deng et al., ; Andersen and Knudsen, ; Sandwell et al., ).

The development of satellite altimetry technology has been a constant effort. For example, reflected radar echoes over the ocean are used to analyze wave height, derive information about wave period, and analyze sea ice.

Over land, echoes help characterize land types, such as complex river systems, lakes, ice sheets, and glaciers. The main components in the satellite altimetry system are: The radar altimeter and antenna.

The new level of precision and global coverage provided by satellite altimetry is rapidly advancing studies of ocean circulation. It allows for new insights into marine geodesy, ice sheet movements, plate tectonics, and for the first time provides high-resolution bathymetry for previously unmapped regions of our watery planet and crucial information on the large-scale ocean features on Book Edition: 1.

A gridded surface-elevation data set and a geo-referenced data base for the Seasat radar altimeter data over Antarctica are described.

It is intended to be a. Estimating surface water storage changes from satellite altimetry (Stephane Calmant) - Satellite radar altimetry, applications, data processing or techniques - Multi-senor applications (e.g., radar altimetry and optical imagery) Challenges for the future satellite altimetry (Hyongki Lee).

There are strong evidentiary reasons to think satellite altimetry does NOT accurately represent SLR change over time. The two most irrefutable observational reasons are: (1) Satellite altimetry measured trends are about x higher than differential GPS, (vertical land motion) corrected long record tide gauges (about versus about mm/yr).

TY - BOOK. T1 - Measurements of sea ice by satellite and airborne altimetry. AU - Kildegaard Rose, Stine. PY - Y1 - N2 - A changing sea ice cover in the Arctic Ocean is an early indicator of a climate in transition, the sea ice has in addition a large impact on the by: 2.

Satellite radar altimetry has been extensively used to estimate ice-sheet elevation change rates over Antarctica and Greenland from repeated measurements of surface elevation changes through.

Robert Bindschadler is a senior fellow at NASA's Goddard Space Flight Center and has been an active field researcher in the Antarctic for over 25 years.

He is a past president of the International Glaciological Society, chairs the West Antarctic Ice Sheet Initiative, is an editor for the Journal of Glaciology and has led 14 expeditions to Antarctica and has participated in numerous other Fields: Geophysics.

Satellite radar altimetry is a powerful tool for studying the sea ice and physical oceanography of the Arctic, a remote but important component of the global climate system. Satellite remote sensing, in particular by radar altimetry, is a crucial technique for observations of the ocean surface and of many aspects of land surfaces, and of paramount importance for climate and environmental studies.

This book provides a state-of-the-art overview of the satellite altimetry. [75] We analyzed satellite radar altimetry (RA) data from four different missions (Seasat, ERS‐1, ERS‐2 and Envisat) acquired between and to provide an unprecedented view of spatial and temporal variability of surface elevation h i over the Antarctic Peninsula (AP) ice shelves.

Inclusion of Seasat data allowed us to roughly double. This book will bring an integrated view of the state-of-the-art in radar altimetry applied to inland water targets for the benefit of the freshwater scientists eager to add Radar Altimetry to their toolkit. The book will describe the experience gained in applying satellite altimetry to different inland water bodies in the World: seas, lakes.

Satellite passes that cross over narrow reservoir extents in severe terrain will push the limits of the instruments with resulting rms values of many tens of centimeters. Despite limitations, satellite radar altimeters can potentially monitor the variation of surface water height for many large inland water bodies including lake, reservoir.

Satellite Altimetry in Coastal Regions on human society. Knowledge of ocean dynamics is essential, but near the coast the processes are much more complex than in the open ocean and require dedicated observing tools.

Coastal observa - tions are also required for marine meteorology forecasting and climate predicting models. Based on the SLE, U ˙ can be derived by combining sea-surface measurements from satellite altimetry and relative sea-level records from tide gauges.

In the present study, we have combined years of CryoSat-2 satellite altimetry and tide-gauge data to estimate linear VLM rates at 20 tide gauges along the Norwegian coast. Satellite Altimetry for Geodesy, Geophysics and Oceanography Proceedings of the International Workshop on Satellite Altimetry, a joint workshop of IAG Section III Special Study Group SSG and IAG Section II, September 8–13,Wuhan, China.

Satellite altimetry is a technique that uses orbiting spacecraft to make very accurate measurements of the height of Earth's land, ice and ocean. Jason-3 carries a radar altimeter system specially designed to make extremely accurate and precise measurements of the height and waves of the ocean surface.

1 INTRODUCTION. Satellite radar altimetry has wide applications in oceanography, the estimation of variations in sea level and large inland water bodies and climate change (e.g. Fu et al; Shum et al), as well as in geodynamics and physical geodesy, where it provides dense and precise sea surface height (SSH) measurements all over the world (Hwang & Hsu ).Cited by: 5.

"Satellite Altimetry Over Oceans and Land Surfaces is the new reference textbook on satellite altimetry that includes contributions from many of the leading experts in the discipline.

This book includes an entire chapter on coastal altimetry, Satellite Altimetry in Coastal Regions, which reviews the many technical improvements (including Author: Detlef Stammer. Okeowo, M.*, H. Lee, F. Hossain, A. Getirana, Automated generation of lakes and reservoirs water elevation changes from satellite radar altimetry, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 10, Announcement of a Special Issue of Advances in Space Research on: 25 Years of Progress in Radar Altimetry Papers are invited for a special topical issue of Advances in Space Research (ASR) entitled "25 Years of Progress in Radar Altimetry".

Radar altimetry is a key component of the Global Earth Observation System of Systems (GEOSS), and over the last 25 years has provided the principal. Waveform Analysis and Improved Altimetric Parameter Estimation over deep-ocean, coastal zones, land areas and ice regions 3Dfrom2D: Using theory, models and observations for quantifying the relative importance of remote sensing data versus in-situ data in constraining the ocean interior circulation.

Get this from a library. Satellite altimetry over oceans and land surfaces. [Detlef Stammer; Anny Cazenave] -- "Satellite remote sensing, in particular by radar altimetry, is a crucial technique for observations of the ocean surface and of many aspects of land.

Laboratory for Satellite Altimetry / Sea Level Rise Radar Altimeter Database System (RADS) The Radar Altimeter Database System (RADS) is an effort of the Department of Earth Observation and Space Systems (DEOS) at TU Delft and the NOAA Laboratory for Satellite Altimetry to establish a harmonized, validated, and cross-calibrated sea level data base from satellite altimeter data.radar echoes over ocean, land, and ice to measure ocean topography, water level variations over the large river basins, land surface elevation and to monitor sea ice and polar ice caps (Wehr and Attema, ; Frappart et al., ).

RA-2 is also a dual-frequency radar altimeter: GHz in Ku-band and GHz in S-band. Specifically.Merging and Analysis of Elevation Time Series Over Greenland Ice Sheet From Satellite Radar Altimetry Kirill S.

Khvorostovsky Abstract—Spatial–temporal variability and changes of Green-land ice sheet elevation from to are analyzed from merged ERS .