Sentinel-4 and Sentinel-5 will be satellites dedicated to monitoring atmospheric composition as part of the European Union's GMES program. Sentinel-4 will launch in 2018 onboard the MTG-S satellite, while Sentinel-5 will launch in 2018+ onboard the MetOp-SG satellite. Both missions aim to measure key atmospheric gases and aerosols to support air quality monitoring and climate change research.
The earth�s ionosphere acts as a perturbing medium on satellite-based navigational systems like GPS. Variations in the ionosphere due to weather conditi ons caused by solar flares and coronal mass ejectio n can scatter Trans - Ionosphere radio signals producing fluctuations in both amplitude and phase and GPS cy cle slips disrupting satellite communications and navig ation. The ionosphere delay is one of the fundament al reasons for inaccuracy in GPS positioning and routi ng. The Total Electron Content (TEC) along the radi o wave path from a GPS satellite to the ground receiv er is directly proportional to the ionosphere delay . This paper proposes a method allowing to calculate the T EC with a correctness of about 2�3 TECU and to sens e Travelling Ionosphere Disturbances using GPS measur ements.
The earth�s ionosphere acts as a perturbing medium on satellite-based navigational systems like GPS. Variations in the ionosphere due to weather conditi ons caused by solar flares and coronal mass ejectio n can scatter Trans - Ionosphere radio signals producing fluctuations in both amplitude and phase and GPS cy cle slips disrupting satellite communications and navig ation. The ionosphere delay is one of the fundament al reasons for inaccuracy in GPS positioning and routi ng. The Total Electron Content (TEC) along the radi o wave path from a GPS satellite to the ground receiv er is directly proportional to the ionosphere delay . This paper proposes a method allowing to calculate the T EC with a correctness of about 2�3 TECU and to sens e Travelling Ionosphere Disturbances using GPS measur ements.
hyperspectral remote sensing and its geological applicationsabhijeet_banerjee
this is an introductory presentation on hyperspectral remote sensing, which essential deals with the distinguishing features, imaging spectrometers and its types, and some of the geological applications of hyperspectral remote sensing.
MMEA (The Measurement, Monitoring and Environmental Efficiency Assessment) research program final seminar presentation by Dr. Eija Honkavaara, Finnish Geospatial Research Institute
A Balloon-Borne Light Source for Precision Photometric CalibrationMax Fagin
ALTAIR (Airborne Laser for Telescopic Atmospheric Interference Reduction) is a balloon-borne optical calibration source used to calibrate the next generation of supernova surveys for probing the nature of the dark energy. The project is a collaboration among colleagues at Harvard University, the University of Victoria, and Dartmouth College. The Dartmouth component has responsibility for vehicle development, telemetry, ground tracking, and flight operations.
A ~25 slide presentation that explains the underlying principles and some applications of InSAR, with a particular focus on the measurement of deformation due to earthquakes. The presentation could be used in a lecture or lab setting, or provided to students for review out of class. The slides are annotated with additional background information designed to assist instructors.
Summary of current radiometric calibration coefficients for Landsat MSS, TM, ETM+,
and EO-1 ALI sensors
Gyanesh Chander a,⁎, Brian L. Markham b, Dennis L. Helder c
a SGT, Inc. 1 contractor to the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center, Sioux Falls, SD 57198-0001, USA
b National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC), Greenbelt, MD 20771, USA
c South Dakota State University (SDSU), Brookings, SD 57007, USA
This presentation outlines the role CIFOR plays in oil palm research and the Global Food Security Forum. Topics include aspirations, processes, and land use planning. Indonesia and Malaysia are provided as case studies.
How to Architect a Novell Sentinel ImplementationNovell
Architecting a Novell Sentinel, Novell Sentinel Rapid Deployment or Novell Sentinel Log Manager installation can be a complicated process, particularly for users who are required to collect data from a large distributed environment. Many factors can impact the architecture users choose, including the amount of data, network link quality, device types, and features of Sentinel and/or Sentinel Log Manager the user wishes to take advantage of.
This session will explain common Sentinel architectural requirements requested by users and will demonstrate how to architect a Sentinel system to meet these requirements. This includes what and how much hardware to buy, how to choose between Sentinel Log Manager, collector managers, or a full Sentinel deployment in order to best meet your needs at the most efficient cost.
hyperspectral remote sensing and its geological applicationsabhijeet_banerjee
this is an introductory presentation on hyperspectral remote sensing, which essential deals with the distinguishing features, imaging spectrometers and its types, and some of the geological applications of hyperspectral remote sensing.
MMEA (The Measurement, Monitoring and Environmental Efficiency Assessment) research program final seminar presentation by Dr. Eija Honkavaara, Finnish Geospatial Research Institute
A Balloon-Borne Light Source for Precision Photometric CalibrationMax Fagin
ALTAIR (Airborne Laser for Telescopic Atmospheric Interference Reduction) is a balloon-borne optical calibration source used to calibrate the next generation of supernova surveys for probing the nature of the dark energy. The project is a collaboration among colleagues at Harvard University, the University of Victoria, and Dartmouth College. The Dartmouth component has responsibility for vehicle development, telemetry, ground tracking, and flight operations.
A ~25 slide presentation that explains the underlying principles and some applications of InSAR, with a particular focus on the measurement of deformation due to earthquakes. The presentation could be used in a lecture or lab setting, or provided to students for review out of class. The slides are annotated with additional background information designed to assist instructors.
Summary of current radiometric calibration coefficients for Landsat MSS, TM, ETM+,
and EO-1 ALI sensors
Gyanesh Chander a,⁎, Brian L. Markham b, Dennis L. Helder c
a SGT, Inc. 1 contractor to the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center, Sioux Falls, SD 57198-0001, USA
b National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC), Greenbelt, MD 20771, USA
c South Dakota State University (SDSU), Brookings, SD 57007, USA
This presentation outlines the role CIFOR plays in oil palm research and the Global Food Security Forum. Topics include aspirations, processes, and land use planning. Indonesia and Malaysia are provided as case studies.
How to Architect a Novell Sentinel ImplementationNovell
Architecting a Novell Sentinel, Novell Sentinel Rapid Deployment or Novell Sentinel Log Manager installation can be a complicated process, particularly for users who are required to collect data from a large distributed environment. Many factors can impact the architecture users choose, including the amount of data, network link quality, device types, and features of Sentinel and/or Sentinel Log Manager the user wishes to take advantage of.
This session will explain common Sentinel architectural requirements requested by users and will demonstrate how to architect a Sentinel system to meet these requirements. This includes what and how much hardware to buy, how to choose between Sentinel Log Manager, collector managers, or a full Sentinel deployment in order to best meet your needs at the most efficient cost.
15. Sächsisches GI/GIS/GDI Forum und Club of Ossiach Workshops
COPERNICUS PROGRAMME AND SENTINEL DATA FOR AGRICULTURE AND FORESTRY
Lenka Hladíková, CENIA, Czech Environmental Information Agency (CZ)
A brief lecture ppt for the students and professionals of Healthcare Quality Management & Patient Safety. This lecture presented in Arar Central Hospital of KSA for CME of doctors & nurses. Sentinel Events topic is a basic topic of Healthcare Quality Management and they can be controlled by caring of International Patient Safety Goals.
MULTIWAVELENGTH RAMAN LIDAR CONSTRUCTION TO MONITOR VOLCANIC ASH AND AEROSOLS IN BARILOCHE INTERNATIONAL AIRPORT, ARGENTINA.
A monitoring station of aerosols was installed at the airport in San Carlos de Bariloche, Rio Negro, Argentina. The station consists of a new multi-wavelength lidar built by the Lidar Division of CEILAP to measure volcanic ash, a sunphotometer included in the AERONET / NASA network and a nephelometer. The main objective is to provide information to help aviation authorities the determination of the air traffic feasibility, due to the presence of volcanic ash from the Puyehue volcano. The description of the instrument and some results are presented.
The purpose of choosing this topic is to aware you about sentinel satellites that leads to new discoveries and ultimately changes the arena of Remote Sensing.
A GEO satellite’s distance from earth gives it a large coverage area, almost a fourth of the earth’s surface and also have 24 hour view of a particular area.This will be very helpful to army,navy etc.,These factors make it ideal for satellite broadcast and other multipoint applications.Continuous monitoring is done and also cost effective in long term, risk-less.
Retrieval & monitoring of atmospheric green house gases (gh gs) through remot...debasishagri
Climate change is one of the most important global environmental challenges of this century. Green House Gases (GHGs) are the main culprit for this problem. Though much of research has already been done about the distribution and sources (and sinks) of GHGs , still much more uncertainties are present. Currently, there are only a few satellite instruments in orbit which are able to measure atmospheric GHGs. The High Resolution Infrared Radiation Sounder (HIRS), the Atmospheric InfraRed Sounder (AIRS), and the Infrared Atmospheric Sounding Interferometer (IASI) perform measurements in the thermal infrared (TIR) spectral region. But these are having low sensitivity to lower troposphere. In contrast to this, the sensitivity of instruments measuring reflected solar radiation in the near-infrared (NIR)/shortwave infrared (SWIR) spectral region is much more constant (with height) and shows maximum values near the surface. At present, SCIAMACHY aboard ENVISAT launched in 2002 and TANSO (Thermal And Near infrared Sensor for carbon Observation) aboard GOSAT (Greenhouse gases Observing SATellite) launched in 2009 are the only orbiting instruments measuring in NIR region. Among all the algorithms the WFM-DOAS algorithm (Weighting Function Modified Differential Optical Absorption Spectroscopy) developed at the University of Bremen for the retrieval of trace gases from SCIAMACHY (Buchwitz et al.2005) is mostly used. This is based on the principle of differential detection of radiance in gaseous absorption channels with respect to neighboring atmospheric transparent spectral channels (not influenced by gas) to detect the conc. of desired gas. But scattering at aerosol and/or cloud particles remains a major source of uncertainty for SCIAMACHY XCO2 retrievals(Houweling 2005, Schneising 2008).Of late with the use of new merged fit window approach scientists have come up with less than 0.5 ppm error in the estimation of CO2 in the presence of thin cirrus cloud(Reuter, Buchwitz et. al. 2010). Schneising et. al.,2007,retrieved d three year’s column-averaged CO2 dry air mole fraction from the SCIAMACHY instrument using the retrieval algorithm WFM-DOAS version 1.0, with precision of about 2 ppm. In India a study was undertaken to compare the atmospheric methane concentration pattern from SCIAMACHY with the vegetation dynamics from SPOT, showed fairly good correlation of methane emission with the rice cultivation(Goroshi et. al.).
Measurer of Meteorological Distance Visibility on the Horizontal Routes of th...AI Publications
Optical-electronic automatic measuring complex is described, intended for the operative measurement of atmosphere’s transparency in the wavelengths region of 0.35-1.03µ and of the meteorological distance visibility in the different climatically conditions from 0.1 to 300km. The measurements of meteorological distance visibility on l = 0.55µ are realized with sensitivity of the apparatus not worse 3.4∙10-5km-1 /mv.
DUAL BAND GNSS ANTENNA PHASE CENTER CHARACTERIZATION FOR AUTOMOTIVE APPLICATIONSjantjournal
High-accuracy Global Navigation Satellite System (GNSS) positioning is a prospective technology that will be used in future automotive navigation systems. This system will be a composite of the United States' Global Positioning System (GPS), the Russian Federation's Global Orbiting Navigation Satellite System (GLONASS), China Beidou Navigation Satellite System (BDS) and the European Union’s Galileo. The major improvement in accuracy and precision is based on (1) multiband signal transmitting, (2) carrier phase correction, (3) Real Time Kinematic (RTK). Due to the size and high-cost of today’s survey-grade antenna solutions, this kind of technology is difficult to use widely in the automotive sector. In this paper, a low-cost small size dual-band ceramic GNSS patch antenna is presented from design to real sample. A further study of this patch antenna illustrates the absolute phase center variation measured in an indoor range to achieve a received signal phase error correction. In addition, this low-cost antenna solution is investigated when integrated into a standard multi-band automotive antenna product. This product is evaluated both on its own in an indoor range and on a typical vehicle roof at an outdoor range. By using this evaluation file to estimate the receiver position could achieve phase motion error-free result.
1. J.-L. Bézy , G. Bazalgette Courrèges-Lacoste, P. Ingmann, J. Langen, B. Sierk, H. Stark, B. Veihelmann Earth Observation Directorate ESA’s GMES SENTINEL-4 and SENTINEL-5
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3. GMES Components GMES is an EU led initiative Services Component – led by EC • Produces information services in response to European policy priorities in environment and security • Relies on data from in-situ and space component In-situ component – led by EEA • Observations mostly within national responsibility, with coordination at European level Space Component – led by ESA • Sentinels - EO missions developed specifically for GMES: • Contributing Missions - EO missions built for purposes other than GMES but offering part of their capacity to GMES (EU/ESA MSs, EUMETSAT, commercial, international) GMES is a perfect example of a system of systems
4. GMES dedicated missions: Sentinels 2013 A / 2015 B Sentinel 1 – SAR imaging All weather, day/night applications, interferometry 2013 A / 2017 B Sentinel 3 – Ocean and global land monitoring Wide-swath ocean color, vegetation, sea/land surface temperature, altimetry 2018+ Sentinel 4 – Geostationary atmospheric Atmospheric composition monitoring – flown on MTG 2013 A / 2016 B Sentinel 2 – Multi-spectral imaging Land applications: urban, forest, agriculture,.. Continuity of Landsat, SPOT 2018+ Sentinel 5 – Low-orbit atmospheric Atmospheric composition monitoring – flown on MetOp-SG (S5 Precursor launch in 2014)
5. Environmental issues of changing atmospheric composition Climate Change and the Greenhouse Effect Nutrification of coastal waters and freshwater lakes; eutrophication Stratospheric Ozone Depletion and enhanced surface UV Acid Rain Los Angeles Smog or "summer" smog London Smog Aerosols in and downwind of regions of high population Enhanced aerosol and photo-oxidant levels due to biomass burning Increase in background tropospheric ozone Intercontinental transport of pollutants and aerosols Stability of the Atmospheric Oxidation Efficiency Information services needed for - Monitoring - Forecasting - Assessment - Mitigation
6. Air pollution and its effect on human health Source: EU programme CAFE, CAFE Scenario Analysis Report Nr. 2. (Amann et al., 2004) Loss in life expectancy in months attributable to anthropogenic PM2.5 [months] “ Air pollution is a major environmental risk to health and is estimated to cause approximately 2 million premature deaths worldwide per year.”
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9. Level 2 Products Ozone vertical profile (O 3 ) Tropospheric ozone (O 3 ) Sulphur dioxide (SO 2 ) Albedo Total ozone (O 3 ) Aerosol Formaldehyde (HCHO) Bromine monoxide (BrO) Rayleigh scat. (cloud), aerosol abs. Nitrogen dioxide (NO 2 ) Glyoxal (CHOCHO) O2-O2 (cloud) Water vapour and cloud (eff. scatt. height) O-A (cloud, aerosol) Methane (CH4) Aerosol profile Carbone monoxide (CO) Wavelength (nm) SWIR VIS NIR UV Sentinel-4 1600 400 600 800 500 700 1800 2000 2200 300 200 2400 Sentinel-5 Priority A Priority B
10. Level 2 Products SCIAMACHY PARASOL OMI MOPPIT SCIAMACHY Source: ONTRAQ study. (P. Levelt 2009 ) Concentration maps for Asia Air quality and tropospheric composition on a global, regional and urban scale Courtesy: J.P. Veefkind (KNMI) Courtesy: H. Eskes, KNMI
11. The Instrument Challenge DOAS analysis of satellite spectra Irradiance and Radiance Measurement Derived Reflectance Note how small the NO2 features are, about 0.5% signal strength of the total signal Contributors to these Spectral Features are: polarisation scrambler, coatings, gratings, sun diffuser, straylight, gain change, … < 0.05 %! 3 nm
20. Programmatics Sentinel 4 Contract awarded to Astrium GmbH for €150 million to develop and build two instruments Sentinel 5 precursor Feasibility studies of the platform on-going; development phase planned for end 2011 Payload is developed by NSO (TROPOMI) with ESA contributions (SWIR, …) Sentinel 5 Feasibility studies on-going; development phase planned for 2013 30 25 20 15 10 05 35 40 MetOp A, B, C (09:30 LTDN) MetOp-SG (09:30 LTDN) , incl . S5/UVNS ENVISAT (10:00 LTDN) S5p (13:35 LTAN) MTG-I 1 MTG-I 2 MTG-I 3 MTG-I 4 MTG-S 2 , incl . S4/UVN MTG-S 1 , incl. S4/UVN G E O L E O
![Outline OMI NO2 over Europe 2004-2005 KNMI/IASB/ESA Image by Pepijn Veefkind, KNMI ,[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)