Definisi dan Komponen Penginderaan Jauh (Remote Sensing)
Summary
TLDRThis educational video delves into the concept and components of remote sensing, a field that involves gathering information about objects or phenomena without direct contact. It highlights the use of satellite imagery and aerial vehicles, such as drones, each with distinct features and purposes. The video explains the roles of natural and artificial energy sources, the atmosphere's impact on electromagnetic radiation, and object-energy interactions. It also covers the detection methods, the importance of platforms and sensors, and the diverse applications of remote sensing data in various fields like geology, forestry, and marine studies.
Takeaways
- 📚 Remote sensing is defined as the science and art of acquiring information about objects or phenomena without direct contact.
- 🌐 Examples of remote sensing outcomes include satellite images and aerial photography, each with distinct characteristics and functions.
- 🛰️ Landsat 8 is a United States satellite launched in 2013, a collaboration between NASA and USGS, offering free image downloads from the Earth Explorer website.
- 🤖 Unmanned Aerial Vehicles (UAVs), or drones, come in various types such as quadcopters and fixed-wing drones, each serving different functions and purposes.
- 🌞 The energy source for remote sensing is divided into natural sources like the sun and artificial sources created by humans to enhance electromagnetic waves.
- 🌁 The atmosphere is composed of gases and molecules that can absorb, reflect, and transmit electromagnetic radiation, affecting remote sensing data.
- 🌈 Interaction between objects and energy is seen through the colors produced, with each object having unique characteristics to reflect or emit energy to sensors.
- 📊 Reflectance spectral curves illustrate the relationship between wavelength and the amount of reflected power, showing differences in reflectance between various surfaces like dry grass and asphalt.
- 🛰️ The platform in remote sensing is the hardware that carries the sensor or recording device, serving to transport the sensor into the air.
- 🔍 Sensors can be photographic, recording objects through chemical processes, or electronic, working electrically across a broad spectrum to produce images.
- 💾 Data processing in remote sensing involves manual interpretation using tools like stereoscopes for 3D effects and numerical data obtained through specialized software.
- 🌐 The applications of remote sensing data span across various fields including geology, forestry, population studies, and marine sciences.
Q & A
What is remote sensing?
-Remote sensing is a science and art of acquiring information about objects or phenomena without direct contact by analyzing data obtained using instruments.
What are some examples of remote sensing outputs?
-Examples of remote sensing outputs include satellite images such as Landsat 8 and aerial photographs taken by UAVs or drones.
When was the Landsat 8 satellite launched?
-The Landsat 8 satellite was launched on February 11, 2013.
What is the collaboration behind the Landsat 8 satellite?
-Landsat 8 is a collaboration between NASA and the United States Geological Survey (USGS).
How can one access images from the Landsat 8 satellite?
-Images from the Landsat 8 satellite can be downloaded for free from the Earth Explorer website.
What are the different types of drones mentioned in the script?
-The script mentions quadcopter drones, GPS drones, and fixed-wing drones as examples of aerial vehicles.
What are the two types of energy sources in remote sensing?
-The two types of energy sources in remote sensing are natural energy sources, such as sunlight, and artificial energy sources created by humans.
What is the role of the atmosphere in remote sensing?
-The atmosphere consists of various gases and molecules that can absorb, reflect, and transmit electromagnetic radiation, affecting the remote sensing process.
How does the interaction between objects and energy manifest in remote sensing?
-The interaction can be seen in the colors produced by objects, which have different characteristics for reflecting or emitting energy to sensors.
What is the concept of spectral reflectance mentioned in the script?
-Spectral reflectance refers to the ratio of reflected energy to incident energy at different wavelengths, which can be used to analyze the properties of objects.
What is the role of the platform in remote sensing?
-The platform, or vehicle, is the hardware that carries the sensor or recording device in remote sensing, serving to transport the sensor into the air.
What are the two types of sensors used in remote sensing?
-The two types of sensors are photographic sensors, which record objects through a chemical process, and electronic sensors, which work electrically across a broader spectrum from X-rays to radio waves.
How is data from remote sensing processed?
-Data from remote sensing is processed into manual data, which involves interpreting images using tools like stereoscopes for 3D effects, and numerical data, which is obtained through specialized remote sensing software.
What are some fields where remote sensing data can be applied?
-Remote sensing data can be used in various fields including geology, forestry, population studies, oceanography, and other areas.
Outlines
🌏 Understanding Remote Sensing and Its Components
This paragraph introduces the concept of remote sensing, defined as the science and art of acquiring information about objects or phenomena without direct contact. It discusses the historical perspective from a 1979 graduate and outlines various remote sensing tools such as satellite images and aerial vehicles like drones. The paragraph specifically mentions the Landsat 8 satellite, a collaborative effort between NASA and the United States Geological Survey (USGS), launched in 2013, and the availability of its imagery on the Earth Explorer website. It also touches on the different types of drones and their unique functions and purposes. The paragraph then delves into the components of remote sensing, starting with the source of energy, which is divided into natural (like sunlight) and artificial sources. It continues with the role of the atmosphere in remote sensing, explaining how it interacts with electromagnetic radiation. The interaction between objects and energy is also discussed, highlighting how different objects reflect light and how this is represented in spectral reflectance curves. The paragraph concludes with an introduction to the use of laser technology for distance measurement, known as LIDAR.
📸 Components and Applications of Remote Sensing
The second paragraph elaborates on the remaining components of remote sensing, starting with the platform, which is the hardware that carries the sensors. It then describes sensors, which are monitoring devices mounted on platforms and are categorized into photographic and electronic sensors. Photographic sensors produce images that can be seen with the naked eye, similar to regular photographs, while electronic sensors operate electrically and cover a broader spectrum, from X-rays to radio waves, producing imagery. The paragraph also addresses data processing in remote sensing, distinguishing between manual data, which involves interpreting images using tools like stereoscopes for 3D effects, and numeric data, which is obtained through specialized software. Lastly, it mentions the various applications of remote sensing data across different fields such as geology, forestry, population studies, and marine sciences. The paragraph concludes with a note of gratitude and a request for forgiveness for any errors, ending with a traditional greeting.
Mindmap
Keywords
💡Remote Sensing
💡Landsat 8
💡Drone
💡Energy Source
💡Atmosphere
💡Interaction
💡Spectral Reflectance Curve
💡Platform
💡Sensor
💡Data Processing
💡Application of Remote Sensing Data
Highlights
Introduction to remote sensing and its components
Definition of remote sensing as a science and art to gather information about objects or phenomena without direct contact
Examples of remote sensing outcomes include satellite images and aerial photographs
Launch of the Landsat 8 satellite by NASA and USGS on February 11, 2013
Landsat 8 images can be downloaded for free from the Earth Explorer website
Description of unmanned aerial vehicles (UAVs), commonly known as drones
Types of drones include quadcopter, GPS drones, and fixed-wing drones, each with specific functions and purposes
Components of remote sensing include the energy source, which is divided into natural and artificial sources
The atmosphere as a component that affects the transmission of electromagnetic radiation
Interaction between objects and energy, observable through the colors produced by the photo air
Graphical representation of spectral reflectance curves for different objects
Technique of lidar for measuring the distance of objects on the Earth's surface using laser principles
Platform as a component that houses the sensor or recording device of the remote sensing system
Sensors are categorized into photographic and electronic sensors based on their recording processes
Photographic sensors record objects through a chemical process, producing images visible to the naked eye
Electronic sensors operate electrically, capturing signals across a broad spectrum from X-rays to radio waves
Data processing in remote sensing involves manual interpretation and numerical data analysis
Application of remote sensing data in various fields such as geology, forestry, population studies, and marine science
Closing remarks, inviting feedback and corrections, and expressing gratitude for watching
Transcripts
Assalamualaikum warahmatullahi
wabarakatuh Selamat datang di video
pembelajaran perpetaan dan sistem
informasi geografis pada video kali ini
saya akan menjelaskan mengenai
pengertian dan juga komponen-komponen
dari penginderaan jauh atau remote
sensing Selamat menyaksikan
menurut lulusan dan kiper pada Tahun
1979 penginderaan jauh adalah ilmu dan
seni untuk memperoleh informasi tentang
objek daerah atau gejala dengan cara
menganalisis data yang diperoleh dengan
menggunakan alat tanpa kontak langsung
terhadap objek daerah atau gejala yang
dikaji tersebut
beberapa contoh hasil penginderaan jauh
diantaranya adalah citra satelit 8 dan
juga Citra USB atau ant-man aerial
vehicle dan setiap perangkat ini
Tentunya menghasilkan gambar dengan ciri
khas dan fungsi masing-masing
lansa 8 sendiri adalah sebuah satelit
observasi bumi milik Amerika Serikat
yang diluncurkan pada tanggal 11
Februari 2013
satelit ini merupakan hasil kolaborasi
antara NASA dan juga United States
survei atau usgs dan contoh citra
satelit ini bisa kita unduh secara
gratis di website Earth explorer.us.go
selanjutnya adalah ant-man aerial
vehicles atau uap yang lebih populer
dengan istilah Drone ada berbagai jenis
Drone seperti quadcopter Drone GPS Drone
fixwing dan lain sebagainya dan tentunya
setiap ground ini memiliki fungsi dan
tujuan masing-masing
selanjutnya Mari kita mengenal
komponen-komponen dari penginderaan jauh
komponen yang pertama adalah sumber
energi sumber energi sendiri terbagi ke
dalam dua bagian yaitu sumber energi
alami dan sumber energi buatan sumber
energi alami atau matahari tentunya
merupakan penghasil cahaya yang
memungkinkan kita untuk melakukan
penginderaan jauh dan sumber energi
buatan dibuat oleh manusia contohnya
adalah dari yang berfungsi untuk
memperkuat gelombang
komponen penginderaan jauh yang kedua
adalah atmosfer atau lapisan udara yang
terdiri dari berbagai jenis gas
molekul-molekul gas yang terdapat pada
atmosfer ini dapat menyerap memantulkan
dan melewatkan radiasi elektromagnetik
komponen yang ketiga adalah interaksi
antara objek dan energi interaksi ini
dapat dilihat dari warna yang dihasilkan
oleh foto udara setiap objek memiliki
karakteristik yang berbeda untuk
mencerminkan atau mengirimkan daya ke
sensor
Berikut ini adalah grafik kurva pantulan
spektral pada grafik sebelah kiri kita
bisa melihat perbandingan antara panjang
gelombang dan juga daya pantul setiap
objek dan bisa dilihat bahwa daya pantul
rumput kering itu jauh lebih tinggi jika
dibandingkan dengan jalanan aspal batu
bata bebatuan dan juga air laut dan bisa
kita lihat pada grafik sebelah kanan
bahwa daya pantul dari vegetasi dan juga
tanah kering yang terdiri dari 5% air
itu jauh lebih tinggi dibandingkan
dengan tanah basah kemudian air danau
dan juga air sungai
Adapun suatu metode pendeteksian objek
yang menggunakan prinsip pantulan sinar
laser untuk mengukur jarak objek yang
ada di permukaan bumi yaitu teknik
slider atau like distance and range
slider ini melakukan penghitungan cara
dengan cara mengeluarkan sinar dari
laser transmitter ke suatu permukaan
kemudian menghitung berapa lama waktu
yang dibutuhkan sinar laser tersebut
untuk kembali ke reseptor
komponen yang keempat adalah Wahana
yaitu perangkat keras yang menyimpan
sensor atau alat perekam dari sistem
penginderaan jauh fungsi Wahana dalam
penginderaan jauh adalah alat untuk
membawa sensor ke udara
komponen yang kelima adalah sensor yaitu
alat pemantau yang dipasang pada Wahana
berdasarkan proses perekamannya sensor
dapat dibedakan menjadi dua yaitu sensor
fotografi dan sensor elektronik
sensor yang pertama yaitu sensor
fotografi sensor ini merekam objek
melalui proses kimiawi yang dapat
dipasang pada pesawat udara maupun
satelit sensor fotografi menghasilkan
foto yang bisa kita lihat seperti foto
pada umumnya dan tentunya bisa kita
lihat dengan mata normal
sensor yang kedua yaitu sensor
elektronik sensor ini bekerja secara
elektrik dalam bentuk sinyal pada
spektrum yang lebih luas yaitu dari
sinar X sampai gelombang radio yang
menghasilkan Citra
komponen yang keenam adalah pengolahan
data data dari penginderaan jauh ini
terdiri dari data manual dan juga data
numerik data manual adalah data dari
hasil interpretasi Citra dengan
menggunakan stereoskop yaitu suatu alat
untuk melihat kesan 3 dimensi pada foto
udara dan data numerik adalah data yang
diperoleh melalui penggunaan software
khusus untuk penginderaan jauh
lalu komponen yang terakhir adalah
penggunaan data hasil dari penginderaan
jauh ini bisa digunakan di berbagai
bidang diantaranya bidang geologi bidang
kehutanan bidang kependudukan bidang
Kelautan dan bidang lainnya
demikianlah video pembelajaran terkait
penginderaan jauh mudah-mudahan apa yang
saya sampaikan ini bisa bermanfaat mohon
maaf apabila ada kesalahan
wassalamualaikum warahmatullahi
wabarakatuh
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