सुदूर संवेदन के सिद्धांत

सुदूर संवेदन के सिद्धांत | Principle of Remote Sensing

वस्तुओं या सतह की विशेषताओं का पता लगाने और भेदभाव का मतलब है पता लगाना और वस्तुओं या सतह से परावर्तित या उत्सर्जित उज्ज्वल ऊर्जा की रिकॉर्डिंग

सामग्री। अलग-अलग ऑब्जेक्ट अलग-अलग मात्रा में ऊर्जा लौटाते हैं विद्युत चुम्बकीय स्पेक्ट्रम के बैंड, इस पर घटना। यह निर्भर करता है सामग्री की संपत्ति (संरचनात्मक, रासायनिक और भौतिक), सतह खुरदरापन, घटना, तीव्रता और उज्ज्वल ऊर्जा की तरंग दैर्ध्य।

रिमोट सेंसिंग मूल रूप से एक बहु-विषयक विज्ञान है जिसमें शामिल है प्रकाशिकी, स्पेक्ट्रोस्कोपी, फोटोग्राफी जैसे विभिन्न विषयों का संयोजन कंप्यूटर, इलेक्ट्रॉनिक्स और दूरसंचार, उपग्रह लॉन्चिंग आदिप्रौद्योगिकियों को अपने आप में एक पूर्ण प्रणाली के रूप में कार्य करने के लिए एकीकृत किया जाता है, जिसे के रूप में जाना जाता है रिमोट सेंसिंग सिस्टम।

Detection and discrimination of objects or surface characteristics means the detection and recording of reflected or emitted radiant energy from objects or surfaces. Different objects return different amounts of energy bands of the electromagnetic spectrum, incident on it. It depends on the property of the material (structural, chemical and physical), surface roughness, incidence, intensity and wavelength of radiant energy.

Remote sensing is basically a multi-disciplinary science involving a combination of various disciplines such as optics, spectroscopy, photography, computers, electronics and telecommunications, satellite launching technologies are integrated to function as a complete system in itself. , Which is known as remote sensing system.

Comments

Geospatial Technology and Environment: World Environment Day Special

Fig. Forest deforestation in Assam, captured by satellite images World Environment Day, 5th of June is celebrated everywhere to bring environmental issues to light to spread awareness about conserving natural resources and their elements. According to the natural tendency of humans, they believe, what they see. To make people aware of the deteriorating condition of the Earth, satellite images have proved to change people’s perception of their surroundings. Over the years, geospatial and remote sensing technology has helped in environment protection, by providing continuous data to monitor and preserve the vulnerable elements. GIS helped to interpret the data and made it feasible for the users to access it online. Since the 1960’s continuous launch of land surface monitoring and weather satellites gave enough visual evidence about the dynamic environmental processes globally. Better spatial and temporal resolution is now sufficient to know the changes on the Earth du...

Let's pledge to save our ocean on this Ocean day!

World Oceans Day is observed every year on 8 June to create awareness among human beings of the benefits it has enjoyed from the ocean so far. The United Nations (UN) declared World Oceans Day as an official occasion in 2008. The UN has also hosted different themes each year to celebrate the day. The day highlights the need and necessity to protect oceans from further deterioration. The idea of World Oceans Day was first proposed in 1992 at the Earth Summit in Rio de Janeiro, Brazil. The idea was proposed to celebrate the ocean and human’s connection to the sea. The theme for World Oceans Day 2021 is ‘The Ocean: Life and Livelihoods’, as well as a declaration of intentions that launches a decade of challenges to achieve the 14th Sustainable Development Goal entitled “Conserve and sustainably use the oceans, seas and marine resources”, by 2030. The purpose of the Day to celebrate is to inform the public of the impact of human actions on the ocean, develop a worldwide movement of citizen...

A preview on the onset of Indian monsoon 2021

Source: IMD Oh, God! It’s too scorching.. When will the rain bring relief? The advancement of the southwest monsoon over the Indian mainland is usually marked by monsoon onset over Kerala. As soon as the monsoon progresses northward, relief from the scorching summer temperatures will be experienced over the areas. Climatologically, the Southwest monsoon sets over Kerala on 1st June with a standard deviation of about 7 days. This year, the onset of southwest monsoon over Kerala is likely to be on 31st May with a model error of ± 4 days. Wait! Which model are you talking about? India Meteorological Department (IMD) has been issuing operational forecasts for the date of monsoon onset over Kerala from 2005 onwards. It uses 6 predictors in the models, these are Minimum Temperatures over North-west India, Premonsoon rainfall peak over south Peninsula, Outgoing Long wave Radiation (OLR) over south China Sea, Lower tropospheric zonal wind over the southeas...

Remote Sensing and GIS

Search This Blog