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.).
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.).
Near surface gas monitoring at the CO2 Field Lab, Norway - presentation by Sarah Hannis in the Test Injection Sites session at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
Application of Seismic Reflection Surveys to Detect Massive Sulphide Deposits...iosrjce
Seismic reflection techniques, the most widely used geophysical method for hydrocarbon exploration
has the capability to delineate and provide better images of regional structure for exploration of mineral
deposits in any geological settings. Previous tests on detection and imaging of massive sulphide ores using
seismic reflection techniques have been done mostly in crystalline environments. Application of seismic
reflection techniques for imaging sedimentary hosted massive sulphide is relatively new and the few experiments
carried out are at local scale (<500m). In this study, we analyze the feasibility of such regional exploration by
modelling three massive sulphide ore and norite lenses scenario using 2D seismic survey with relatively sparse
source-receiver geometry to image these deposits within 1.5km depth range. Results from the modelling
experiment demonstrate that 2-Dimensional seismic reflections survey can be used to detect massive sulphides
at any scale. The test further indicates that geologic setting and acquisition parameters are very important for
the detection of these ore bodies. Overall, the outcomes of the results support our started objective which is to
demonstrate that seismic reflection surveys can be used to detect the presence of sediment hosted massive
sulphides at regional scale
Summary of DART Geophysical Methodology 100111DART Project
A summary of the proposed Geophysics methodology to be used on the DART project. Presented at the academic and stakeholder meetings (10th and 11th January 2011 respectively) by Rob Fry (Bradford University).
Charla dictada por PhD(c) Javier A. Concha, del Rochester Institute of Technology Digital Imaging and Remote Sensing Lab) (Departamento de Geofísica, Universidad de Concepción, enero de 2014).
Abstract:
El recientemente lanzado satélite Landsat-8 tiene el potencial de dramáticamente mejorar nuestra habilidad para la determinación de concentración de los tres principales agentes colorantes de aguas dulce y costeras (clorofila, sedimentos y materia orgánica disuelta coloreada) mediante imágenes satelitales. El primer paso es remover el efecto de la atmósfera, para lo cual se diseña un algoritmo que utiliza dos pixeles de la imagen con reflectancias estimadas. Finalmente, las concentraciones son determinadas mediante un algoritmo de optimización que utiliza una look-up table de reflectancias generadas por el modelo físico HydroLight. En esta ocasión presentaré los primeros resultados de esta investigación.
/http://www.dgeo.udec.cl/
A precise measurement of the magnetic field in the corona of the black hole b...Sérgio Sacani
Observations of binary stars containing an accreting black hole or neutron star often show
x-ray emission extending to high energies (>10 kilo–electron volts), which is ascribed to
an accretion disk corona of energetic particles akin to those seen in the solar corona.
Despite their ubiquity, the physical conditions in accretion disk coronae remain poorly
constrained. Using simultaneous infrared, optical, x-ray, and radio observations of the
Galactic black hole system V404 Cygni, showing a rapid synchrotron cooling event in its
2015 outburst, we present a precise 461 ± 12 gauss magnetic field measurement in the
corona. This measurement is substantially lower than previous estimates for such systems,
providing constraints on physical models of accretion physics in black hole and neutron
star binary systems.
A precise measurement of the magnetic field in the corona of the black hole b...Sérgio Sacani
Observations of binary stars containing an accreting black hole or neutron star often show
x-ray emission extending to high energies (>10 kilo–electron volts), which is ascribed to
an accretion disk corona of energetic particles akin to those seen in the solar corona.
Despite their ubiquity, the physical conditions in accretion disk coronae remain poorly
constrained. Using simultaneous infrared, optical, x-ray, and radio observations of the
Galactic black hole system V404 Cygni, showing a rapid synchrotron cooling event in its
2015 outburst, we present a precise 461 ± 12 gauss magnetic field measurement in the
corona. This measurement is substantially lower than previous estimates for such systems,
providing constraints on physical models of accretion physics in black hole and neutron
star binary systems.
Presentation from EuroSDR 113th meeting, Cardiff, October 2008. An overview of some of the geospatial research carried out by the different departments, centres and groups at UCL.
Pre-Injection Assessment of Time-Lapse Seismic Repeatability at the Aquistore CO2 Storage Site - presentation by Lisa Roach of the University of Leeds at the UKCCSRC meeting Monitoring of the deep subsurface: leakage pathways – understanding and monitoring the mechanics of CO2 storage, 23 October 2014
Drawing on hands-on experience and theoretical contributions Serge will encourage attendees to consider innovative approaches to problems across the mining logic chain, with examples including:
• Porphyry unit modelling - Simulations
• Integrating grade control and resource drilling data – Co-kriging
• Modelling geotechnical characteristics - Directional Concentration
• Predicting metallurgical recovery & sampling – non additivity
Unleashing the potential of collaboration – archaeological detection in the 2...DART Project
Speakers – Anthony Beck/David Stott
Computers, the internet and mobile phones have changed how archaeologists work. More importantly it has changed how everybody can access, use and contribute to archaeology.
This has altered public expectations on modes of engagement and resource access. This is resulting in an increased demand for access to this data. This phenomena is not solely about archaeology and heritage but is reflected in many areas of society. Some governments have recognised that taxpayers, as funders of data, should be allowed to access and utilise this data more easily. This has underpinned the Open Data movement.
At the same time companies and institutions, like Google and NASA, started making large datasets available on the internet. Some of these organisations provided Application Programming Interface (API's) and other services so that software applications could be built around their data. Such software services made it easier for people to use this data to make new things (derive content) and in turn share these things with their communities. This produced the crowd-sourcing and citizen-science movements. Crowdsoucing is where products, ideas, or content are created by soliciting contributions from a large group of people online. The community mapping system called Open Street Map is a good example of crowdsourcing.
Other people want to be more active. Projects like Galaxy Zoo, Ancient Lives and Old Weather have helped free data trapped in books or help scientists collect and analyse data. National Geographic have sponsored a project to help detect archaeological sites in Mongolia using high spatial resolution satellite images (exploration.nationalgeographic.com/mongolia/home). With lots of people working together a big problem can turn into a small problem. These people are 'citizen scientists'.
This presentation will describe these movements in more detail and provide examples of their implications for the heritage sector. A vision will then be set out for the future of a collaborative framework for heritage management. This will be framed in the implications it has for practice, engagement, research, curation and policy. Public participation is welcomed!
Using multi-temporal benchmarking to determine optimal sensor deployment: adv...DART Project
A presentation given by Anthony Beck at EARSeL Gent on 20/09/12 describing some of the multi-temporal issues associated with archaeological detection. This presentation is primarily based on the research of David Stott.
A presentation by Anthony Beck presented at the workshop "Potential of satellite images and hyper/multi-spectral recording in archaeology"
Poznan – 31st June 2012
Archaeological detection using satellite sensorsDART Project
A presentation given by Anthony Beck at the workshop "Potential of satellite images and hyper/multi-spectral recording in archaeology"
Poznan – 31st June 2012
A presentation given at the workshop "Potential of satellite images and hyper/multi-spectral recording in archaeology"
By Anthony Beck
Poznan – 31st June 2012
An update on the progress of the DART project. Presented by Anthony Beck at the Consultant meeting on the 16th April 2012. The original prezi is available here: http://prezi.com/o2k18vxhpow7/dart_16042012_wherearewenow/
A presentation given by Anthony Beck at the Royal Agricultural College, Cirencester on 14th February 2012. This presentation describes the data collected by the DART project and encourages members of the local communities to exploit this data.
It covers data, formats, licences, software, applications. This introductory presentation was followed up with an afternoon hands-on workshop.
An update on the progress of the DART project. Presented by Anthony Beck at the Consultant/Stakeholder meeting on the 11th January 2012. The original prezi is available here: http://prezi.com/wsvu366ftd9k/dart_11012012_wherearewenow/
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Thesis Statement for students diagnonsed withADHD.ppt
DART: Fry progress so far 070711
1. Progress Update A quick look at the DART project so far, the preliminary geophysics and the FlashRes64 Robert Fry Division of Archaeological, Geographical and Environmental Science