LIDAR (Light Detection and Ranging) Technology

LIDAR (Light Detection and Ranging) Technology LIDAR (Light detection and ranging) is a method of determining the topography of the surface using a laser. These pulses generated are recorded which provide precise three-dimensional information about the surface. Today various platform LIDAR is available in the market and those are chosen based on the project requirement. E.g. terrestrial LIDAR, which is fixed in ground, airborne LIDAR, which is placed on a flying platform like an airplane or helicopter and space borne Laser which is fixed on satellite platforms. Two types of LIDAR are available, topographic, and bathymetric. Topographic LIDAR use near infrared laser, whereas bathymetric LIDAR us green light which penetrate the water. The use of airborne laser (LIDAR) for measuring the depth of near shore coastal waters and lakes from an aircraft is getting more popular in surveying industry. The demand for faster and cheaper coastline survey can be replaced by using airborne LIDAR technology. The Airborne LIDAR bathymetry was successfully tested by US, Canada, and Australia in the early 1970s. The system built by Canadian Hydrographic Service (CHS) in 1986, the LARSEN 500 system was the first operational airborne LIDAR bathymetry system. Airborne LIDAR bathymetry has proven to be more accurate, cost effective, efficient, and fast method of collecting shallow water bathymetry data than the sonar technology which is less efficient and hard to operate in many cases. The airborne laser bathymetry involves the pulse laser transmitter which emits green and infrared beams. The wave length of green laser is 532 nm which can penetrate coastal water with less attenuation and can be used for coastal bottom detection. The infrared (IR) cannot penetrate the water and can be used for sea surface detection. The bathymetry sensors consist of four major components, the GPS receiver which records the aircraft position, the inertial measurement unit (IMU) which gives the roll, pitch and yaw of the aircraft, the laser scanner which emits the signal and the receiver sensor which read the returning signal. The LIDAR system can record the accurate measurements by knowing the position and orientation of all these components. These sensors c an measure thousands of points per seconds The transmitted laser pulse from the aircraft partially reflected from the water surface and the seabed back to the receiver. By recording the time taken from the laser to reach the surface and back to the receiver and speed of the light in air and in water, the distance to the sea surface and sea bed can be calculated. This information is used to calculate the water depth. The bathymetric LIDAR system also includes RGB cameras which acquire better color photo which is used as a quality check tool in identification of bathymetric features and aids to navigation. Airborne LIDAR bathymetry has various  Ã‚   advantages over other traditional water borne surveying techniques. It has tendency to perform survey quickly, efficiently within small operational window. This can cover a very large area and all those areas where it would be difficult to survey using traditional surveying methods. The ability of the airborne LIDAR to operate from the air gives the surveyor a flexibility that sur vey vessel surveyors could hardly imagine. The modern airborne LIDAR now comes with oblique digital photography which can be merged with point cloud. These georeferenced images are used during the validation process. There are numerous limitations of an airborne LIDAR bathymetry system. The maximum depth the laser can penetrate depends on the clarity of water. The maximum surveyable depths depend on several systems used and the environment condition. The green laser penetrates and travel maximum depth if the water is clear water. The maximum surveyable depths ranges from 50 meters in clean water to less than 10 meters in murky water. The use of airborne LIDAR system is not appropriate for small target detection. The spatial resolution obtained from the airborne LIDAR is not as good as for modern high frequency sonar. Small target detection using airborne LIDAR may be possible by significantly increasing the survey density which becomes more expensive. Various environmental factors like rain, fog, clouds, high winds, high waves, etc. can cause problem when carrying airborne LIDAR survey. Surveying in rain cause laser beam to backscatter to the receiver bye raindrops. The backscatter signal by the mist, fog can result in false surface heights.   Airborne survey in high wind can pose a danger when flying near a coastal mountain and cause changes in survey density. Airborne LIDAR bathymetry technology can be used for many applications like charting, environmental mapping, flood plain and coastal mapping etc. https://www.gim-international.com/content/article/technology-in-focus-bathymetric-LIDAR-2

Difference between Branding and Brand Equity Essay

â€Å"Though no one can go back and make a brand new start, anyone can start from now and make a brand new ending†. (Bard qtd. in. ThinkExist. com) This quote shows one fact that the process of ‘branding’ is endless. Because, simply, when ‘brand equity’ is known or measured, the brand could be protected and managed properly. This essay aims at giving an overview of the ‘branding’ and ‘brand equity’ terms or concepts to show the difference between both of them. And due to the fact that â€Å"both terms are usually defined around the concept of adding value to a product (or service)† (Binnie 17), it could be hard for some people to differentiate between both of them. That’s why the best approach to realize the difference between ‘branding’ and ‘brand equity’ is to dig and search in the literature to define both terms to know what is meant by each one of them. However, before separating each term from the other -to know the difference between both of them-, let’s move to the real world to have an idea about a simple fact concerning a certain brand (Coca-Cola in this case). This interesting example –mentioned by Blackett- deserves to be mentioned here to realize how important a brand could be for a company. â€Å"By mid-2002, Coca-Cola Company’s stock market value reached $136 billion, while the business net asset value (the book value) was only $10. 5 billion†. (5) The interesting fact here is when we add this information to the fact that: â€Å"The value of Coca-Cola brand for the same period (mid-2002) was estimated by $70 billion (over half of the $136 intangible value mentioned above! . † (Blackett 5) Then, after realizing the importance of ‘branding’ to the company in the marketplace -in the previous example-, it’s time to know what is meant by both terms, ‘branding’ and ‘brand equity’. First of all, a ‘brand’ is defined by the Dictionary of Business and Management as â€Å"a name, sign or symbol used to identify items or services of the seller(s) and to differ entiate them from goods of competitors. † (qtd. in. BuildingBrands Ltd. ) However, a ‘brand’ is more than a name, a sign or a symbol. In another word, this definition is not sufficient to describe the term ‘brand’. Grimaldi gave a better definition for the term ‘brand’ as â€Å"a combination of attributes, communicated through a name, or a symbol, that influences a thought-process in the mind of an audience and creates value. † And this is what Blackett assured when he mentioned that â€Å"the visual distinctiveness of a brand may be a combination of any of the following: name, letters, numbers, a symbol, a signature, a shape, a slogan, a color, a particular typeface. (3) Also, Davis (2) defined the ‘brand’ term as â€Å"all the promises and perceptions that an organization ‘wants’ its customers to feel about its product(s) and service offerings. † (2) Now, moving to the ‘branding’ concept or term, according to Davis (1), ‘branding’ is a complex ‘process’, but its goal is simple: it is the creation and development of a specific identity for a company, product, commodity, group, or person. † (3) Grimaldi mentioned an interesting definition for ‘branding’: The blend of art and science that ‘manages associations’ between a brand and memories in the mind of the brand’s audience. † And this blend â€Å"involves focusing resources on selected tangible and intangible attributes to differentiate the brand in an attractive, meaningful and compelling way for the targeted audience. † Now, after understanding what is meant by both ‘bra nd’ and ‘branding’ terms, it’s time to know what is meant by ‘brand equity’ term or concept. The ‘brand equity’ concept â€Å"emerged in the early 1990s†, (Tuominen 96) and introduced in marketing literature in the 1980s† (Rajh 1) and before mentioning definitions of this term, it is necessary to realize that â€Å"brand equity is the key to understanding the net impact of marketing† (Reynolds and Philips qtd. in. Binnie 16) According to Hoeffler and Keller, â€Å"most definitions of brand equity rely on ‘brand knowledge’ structures in the minds of consumers –individuals or organizations-† (421 qtd. in. Binnie 17). And Pullig gave a simple definition to the term ‘brand equity’ as â€Å"consumer brand knowledge†. Keller also defined the ‘brand equity’ term as â€Å"the ‘differential consumer response’ from ‘knowing’ the brand†. (qtd. in. Binnie 17) According to Keller and Kevin, ‘brand equity’ is â€Å"the value of the brand in the marketplace† (qtd. in. Pullig). McDonald added another dimension when she defined it as â€Å"the stored value built up in a brand which can be used to gain ‘market advantage’† (2). So, after studying these definitions, it is obvious -as Tuominen mentioned- that â€Å"there are three key ingredients in the ‘brand equity’ definition and they are: (1) brand knowledge, (2) differential effect, and (3) consumer response to marketing. † (75) Finally, according to these definitions, it is obvious that (1) ‘branding’ is the process of creating, developing, protecting, and managing the special identity of the product, or the ‘brand’ (to differentiate it in the marketplace) and it is not only marketing effort, it includes all the companies efforts to build this differentiation; (2) the ‘brand’ is the end result of that process or the combination of all the tools used to create this special identity of the product; and (3) the ‘brand equity’ is the ‘feedback’ of the ‘branding’ process or the key to measure, assess, or weigh the end result ‘brand’ –as we saw previously in the Coca-Cola example- and compare it with what is desired or planned in the ‘branding’ process. In another word, ‘brand equity’ will show whether the ‘branding’ process and other marketing efforts (or even public relations) are on the right track or not.

Common and Popular Roof Styles and Shapes

Child Marriage Is A Violation Of Human Rights - 1746 Words

Child marriage, defined as the formal or informal union before the age of 18, affects both girls and boys, even though girls are disproportionately affected (USAID, 2011). One third of girls in developing countries are married before turning 18 and one in nine are married before the age of 15 (ICRW, 2006). Child marriage is a violation of the human rights according to the 1990 African Charter on the Rights and Welfare of the Child (ACRWC) and the Convention on the Elimination on All Forms of Discrimination Against Women points out that even though a child may attain sexual maturity early, the child often is not mature enough to handle the physical, physiological, and psychological responsibilities pertaining to child bearing, marriage and motherhood (Maswikwa, et al., 2015; USAID, 2011). Child brides have limited ability to negotiate contraception use and engage in sexual activities that can result in pregnancy and sexually transmitted diseases. In the long run, pregnancy can have de trimental effects including obstetric fistula, which often occurs among girls who give birth before their bodies are physically mature (Kanesathasan et al., 2008). Child brides are more likely to experience domestic abuse and violence as compared to their peers who marry later (ICRW, 2006). The health problems, abuse and violence can lead to isolation from family and friends, feelings of hopelessness and helplessness, depression and post-traumatic stress (ICRW, 2006). Delaying child marriageShow MoreRelatedChild Marriage Is A Violation Of Human Rights1705 Words   |  7 Pages Child marriage, can be defined as a women or a man who has been married before the legal adult age of 18, is still prevalent today, even in the â€Å"developed† nation of the United States. Most of the time these marriages are both arranged and forced, whether it be by a community or by parents. 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