Review Jurnal Penginderaan Jauh Sinar Tampak "Evaluation of Standar & Regional Satellite Chlorophyll-a Algorithms for MODIS in the Bohai & Yellow Seas, China" oleh Wang et al. (2019)
This is a revision of the previous post on the same topic. There I tried to develop my own algebra of symbols to represent coarse grained (spatially integrated) hydrological system. Later on I understood that Petri networks were already there and useful to obtain the same result. The graphs obtained in such a way where, besides, studied in several places, and many contributes of literature convergent from other disciplines, can be used for hydrological scopes.
This is a revision of the previous post on the same topic. There I tried to develop my own algebra of symbols to represent coarse grained (spatially integrated) hydrological system. Later on I understood that Petri networks were already there and useful to obtain the same result. The graphs obtained in such a way where, besides, studied in several places, and many contributes of literature convergent from other disciplines, can be used for hydrological scopes.
A travel time model for estimating the water budget of complex catchmentsRiccardo Rigon
This is the presentation given by Marialaura Bancheri for her admission to the final exam to achieve a Ph.D. in Environmental Engineering. It contains a synthesis of her studies about spatially integrated models of the water budget, and about travel time theory. A model structure is also presented preliminarily containing five reservoirs.
Almost the same as the talk given to Ph.D. students one year ago. It covers the problem of research reproducibility and the tools for doing it. First comes some "theoretical" arguments, then the enumeration of some tools.
This contains the talk given at the 2017 meeting of the SteepStream ERANET project. It is assumed to talk about the hydrological cycle of the Noce river in Val di Sole valley (Trentino, Italy). It is a preliminary view of what we are going to do in the project.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
2018 GIS in Education: GIS Watershed Delineation and Morphometric Analysis of...GIS in the Rockies
GIS watershed delineation is an essential part of water resource management. With increasingly available high-resolution data, hydrologic modelling is often more economical than field delineations; however, sources of errors and degree of correctness are often underestimated or unknown (Li and Wong, 2010). Although there are studies analyzing morphometric properties for DEM-derived watersheds, there are very few that compare morphometric properties between different DEM resolutions. This study performs an ArcHydro delineation for three DEM datasets and analyze the morphometric properties of the watersheds to determine differences from spatial resolution and source DEM. The study area is within the upper Vltava River in the Czech Republic and hydrologically-corrected 30-meter NASA SRTM DEM, and a 5- and 2-meter DTM from the Czech Republic Land Survey Office were used for the delineation. Twenty-two morphometric properties of the extracted watersheds were analyzed, and an accuracy assessment was performed. Results show total area and shape of each watershed were similar, but drainage density, number of subwatersheds, and mean elevation varied. Additionally, total stream length and length ratio is lowest for the SRTM watershed, suggesting that increased point density decreases interpolation error and increases both terrain surface and drainage network variability. However, performance time should be considered, with Flow Direction taking 10-times longer for the 5G DEM than for the SRTM dataset. Furthermore, a cost-benefit analysis to determine the resolution needed for the expected outcome should be performed. Lastly, understanding differences in algorithms used to extract the watershed and river network is essential for GIS best practices.
The oxford dictionary defines an attribute as, “a quality ascribed to any person or thing”. We have extended this definition to: “seismic attributes are all the information obtained from seismic data, either by direct measurements or by logical or experience based reasoning
In reflection seismology : aseismic attributes is a quality extracted or derived from seismic data that can be analyzed in order to enhance information that might be more subtle in a traditional seismic image , leading to a better geological or geophysical interpretation of the data
Over the past decades, we have witnessed attribute developments track breakthroughs in reflector acquisition and mapping, fault identification, bright spot identification, frequency loss, thin bed tuning, seismic stratigraphy.
Seismic data Interpretation On Dhodak field PakistanJamal Ahmad
I (Jamal Ahmad) presented this on 21 Feb, 2009 to defend my M.Phil dissertation in Geophysics at QAU, Islamabad, Pakistan. For more information about this, you may contact me directly at jamal.qau@gmail.com.
A travel time model for estimating the water budget of complex catchmentsRiccardo Rigon
This is the presentation given by Marialaura Bancheri for her admission to the final exam to achieve a Ph.D. in Environmental Engineering. It contains a synthesis of her studies about spatially integrated models of the water budget, and about travel time theory. A model structure is also presented preliminarily containing five reservoirs.
Almost the same as the talk given to Ph.D. students one year ago. It covers the problem of research reproducibility and the tools for doing it. First comes some "theoretical" arguments, then the enumeration of some tools.
This contains the talk given at the 2017 meeting of the SteepStream ERANET project. It is assumed to talk about the hydrological cycle of the Noce river in Val di Sole valley (Trentino, Italy). It is a preliminary view of what we are going to do in the project.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
2018 GIS in Education: GIS Watershed Delineation and Morphometric Analysis of...GIS in the Rockies
GIS watershed delineation is an essential part of water resource management. With increasingly available high-resolution data, hydrologic modelling is often more economical than field delineations; however, sources of errors and degree of correctness are often underestimated or unknown (Li and Wong, 2010). Although there are studies analyzing morphometric properties for DEM-derived watersheds, there are very few that compare morphometric properties between different DEM resolutions. This study performs an ArcHydro delineation for three DEM datasets and analyze the morphometric properties of the watersheds to determine differences from spatial resolution and source DEM. The study area is within the upper Vltava River in the Czech Republic and hydrologically-corrected 30-meter NASA SRTM DEM, and a 5- and 2-meter DTM from the Czech Republic Land Survey Office were used for the delineation. Twenty-two morphometric properties of the extracted watersheds were analyzed, and an accuracy assessment was performed. Results show total area and shape of each watershed were similar, but drainage density, number of subwatersheds, and mean elevation varied. Additionally, total stream length and length ratio is lowest for the SRTM watershed, suggesting that increased point density decreases interpolation error and increases both terrain surface and drainage network variability. However, performance time should be considered, with Flow Direction taking 10-times longer for the 5G DEM than for the SRTM dataset. Furthermore, a cost-benefit analysis to determine the resolution needed for the expected outcome should be performed. Lastly, understanding differences in algorithms used to extract the watershed and river network is essential for GIS best practices.
The oxford dictionary defines an attribute as, “a quality ascribed to any person or thing”. We have extended this definition to: “seismic attributes are all the information obtained from seismic data, either by direct measurements or by logical or experience based reasoning
In reflection seismology : aseismic attributes is a quality extracted or derived from seismic data that can be analyzed in order to enhance information that might be more subtle in a traditional seismic image , leading to a better geological or geophysical interpretation of the data
Over the past decades, we have witnessed attribute developments track breakthroughs in reflector acquisition and mapping, fault identification, bright spot identification, frequency loss, thin bed tuning, seismic stratigraphy.
Seismic data Interpretation On Dhodak field PakistanJamal Ahmad
I (Jamal Ahmad) presented this on 21 Feb, 2009 to defend my M.Phil dissertation in Geophysics at QAU, Islamabad, Pakistan. For more information about this, you may contact me directly at jamal.qau@gmail.com.
VARIOUS TRENDS IN BACKSCATTER OF NATURAL TARGETS ON LAND OBSERVED IN QUICKSCA...jmicro
Now a days there are few areas on the surface of earth having a relatively constant BSC and can serving as
radar calibration targets. Few Examples include the Amazon rain forest, the Greenland ice sheet etc. In
this paper we analyse a consistent set of Ku-band radar measurements from the QuickSCAT data mission
for about ten years. To study the long-term variation of observed BSC, a set of data is required from
Earth's surface this band. A global survey of potential constant land targets is performed. To identify the locations of the best natural calibration targets Quantitative measurements of temporal and spatial variabilities (homogeneity) and isotropy are used. By concentrating on low variation areas, useful calibration targets for future radar missions and for inter calibration between existing radars can be identified. By focusing on regions with little spatial heterogeneity, the temporal variations on
diurnal, seasonal, and also decadal scales in homogenous natural terrain types including rain forest, dry brushy areas, and ice sheets can be analysed. The Greenland ice sheet shows a significant trend in backscatter in recent years, and therefore, may not be a suitable calibration site anymore. Another location for a good stable target is a dry brushy area in the Sahara, which shows comparable stability and isotropy with those of the Amazon, Congo, and Antarctica.
Historical and Contemporary Trends in the Size, Drift, and Color of Jupiterʼs...Sérgio Sacani
Observations of Jupiter’s Great Red Spot (GRS) span more than 150 years. This allows for careful measurements
of its size and drift rate. High spatial resolution spacecraft data also allow tracking of its spectral characteristics and
internal dynamics and structure. The GRS continues to shrink in longitudinal length at an approximately linear rate
of 0°.194 yr−1 and in latitudinal width at 0°.048 yr−1. Its westward drift rate (relative to System III W. longitude)
has increased from ∼0°.26/day in the 1980s to ∼0°.36/day currently. Since 2014, the GRS’s short wavelength
(<650 nm) reflectance has continued to decrease, while it has become brighter at 890 nm, indicating a change in
clouds/haze at high altitudes. In addition, its north–south color asymmetry has decreased, and the dark core has
become smaller. Internal velocities have increased on its east and west edges, and decreased on the north and south,
resulting in decreased relative vorticity and circulation. The GRS’s color changes from 2014 to 2017 may be
explained by changes in stretching vorticity or divergence acting to balance the decrease in relative vorticity.
Freshwater Lake Mapping and its Volumetric Estimation in the Glaciated Valley of Chhombu in Sikkim Himalayas Using High-Resolution Optical (Sentinel-2 MSI) Imagery.
Arindam Chowdhury North Eastern Hill University, India)
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
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.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
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.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
4. Introduction
Chlorophyll-a (chl-a) concentration
has long been regarded as a
powerful way of representing
phytoplankton biomass in the oce
an.
In recent decades, remotely sense
d
satellite ocean colour products ha
ve been widely used to detect syn
optic
spatial and temporal patterns and
variability of sea surface chl-a
concentrations.
However, when applied to coastal
waters which are shallow in depth
and/or have high turbidity, satellite
-derived chl-a may produce
significant biases due to inaccurac
ies in atmospheric correction mod
els
and improper inversion algorithms
.
Therefore, careful evaluation of th
e
existing satellite chl-a algorithms a
nd developing new regional algorit
hms are essential for satellite oce
an colour applications over opticall
y complex waters.
5. To evaluate the performance of the standar
d OC3M (ocean chl-a three-band algorithm f
or MODIS (moderate-resolution imaging sp
ectro
radiometer)) chl-a algorithm.
The aim
6. Data & Methods
In situ measurements of
chl-a
Figure 1.
(a) Map of the BYS and (b)–(j) the sites of the in situ chl-a measurem
ents during each cruise;
(b) 20 April–4 May 2010; (c) 2 May– 20 May 2012;
(d) 2 November–19 November 2012; (e) 22 June–9 July 2013;
(f) 6 November–24 November 2013; (g) 28 April–18 May 2014;
(h) 7 November–23 November 2014; (i) 17 August-5 September 2015
;
(j) 15 January–30 January 2016.
7. The daily MODIS/Aqua standard local area
coverage (LAC) remote-sensing reflectance (
Rrs)
images for 10 available visible bands were
downloaded from the NASA
(National Aeronautics and Space
Administration)
Satellite chl-a data
spatial resolution of approximately 1 km ×1 km
and over the time span from
4 July 2010 to 31 December 2016.
8. 1 2
3 4
Method for satellite chl-a data validation
The satellite chl-a values were extract
ed and compared against the coincide
nt in
Situ chl-a measurements.
Visual inspections of spatial difference
s
between in situ, OC3M and GAM
(correlation analyses).
The BYS was subdivided into three
subregions Including:
a coastal region (<20 m isobath);
an offshore region (>50 m isobath);
as well as a transitional region (betwe
en 20 and 50 m isobaths).
The chl-a series for the specific regi
ons were calculated and compared
with
the corresponding in situ chl-a serie
s
over each time span during the year
s 2010–2016.
9. Statistical comparisons
Results
2(a). The MRD value of 1.
13 mg m−3 indicates a dist
inct
overestimation in OC3M c
hl-a estimates.
2(b). In contrast, the GAM
chl-a algorithm was
characterized by much low
er uncertainty (MAPD = 33
.56%, MRD = 0.09 mg m−
3).
10. Spatial comparisons for each cruise
Figure 3. Spatial distribution
s
of:
(a) in situ chl-a measuremen
ts;
(b) OC3M satellite chl-a;
(c) GAM satellite chl-a;
composites for each of the 9
cruises (from left to right in
order: January 2016, April–
May 2010, April–May 2014,
May 2012, June–July 2013,
August–September 2015,
November 2012, November
2014 and November 2013);
(d) the series of chl-a averag
es during the period of each
cruise.
11. Time series comparisons
Figure 4. The time series of monthly chl-a
averages generated from satellite products for
:
(a) the entire BYS region,
(b) coastal region,
(c) transition region, and
(d) deep region.
The solid line is the OC3M chl-a, the dotted lin
e is GAM chl-a, and filled circle is in situ chl-a
averages for each cruise.
Table 1. Results of the Spearman rank correlation
analyses between satellite-derived and in situ
measured chl-a over different regions.
12. Conclusio
n
The extent of overestimati
on of chl-a values by the
standard OC3M algorithm
values was quantified, and
the extent of distortion of c
hl-a seasonality was show
n to be significant.
The result of this study
opposes the use of the
standard OC3M algorithm i
n the BYS.
Compared with the
OC3M algorithm, a
previously reported
regional GAM chl-a
algorithm for the BYS
produced more
accurate derived chl-a
values and a
seasonality consistent
with the in situ
measurements, makin
g it a more suitable ch
l-a algorithm for use in
the BYS.