Related Experiment Video
Updated: Feb 8, 2026
06:16
Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
Published on: April 25, 2019
8.0K
[Application of Satellite Remote Sensing in NO Emission Control]
Wei-Ling Wu1, Wen-Bo Xue1, Yan-Li Wang1
1Chinese Academy for Environmental Planning, Beijing 100012, China.
Huan Jing Ke Xue= Huanjing Kexue
|July 3, 2018
Summary
Tropospheric nitrogen dioxide (NO2) levels significantly decreased due to emission control policies. Analysis of Ozone Monitoring Instrument (OMI) data confirmed effective NO2 emission reductions over five years.
Area of Science:
- Atmospheric chemistry and air quality monitoring.
- Remote sensing of atmospheric pollutants.
Context:
- Tropospheric nitrogen dioxide (NO2) is a key air pollutant and precursor to ozone and particulate matter.
- Evaluating the effectiveness of emission control policies is crucial for air quality management.
- Special events can provide unique opportunities to assess short-term impacts on air pollution.
Purpose:
- To analyze tropospheric NO2 vertical column densities (VCDs) using Ozone Monitoring Instrument (OMI) data.
- To evaluate the impact of emission control policies on NO2 emissions during specific periods.
- To assess the effectiveness of China's "12th five-year plan" and early "13th five-year plan" emission reduction strategies.
Summary:
- A positive correlation was observed between NO2 VCDs and ground-level NO2 emissions.
- OMI data indicated a remarkable 24.98% decrease in NO2 VCDs over five years, demonstrating the success of the "12th five-year plan" emission controls.
- In 2016, NO2 VCDs showed a further year-on-year decrease of 3.18%, indicating continued emission reductions during the early "13th five-year plan" period.
Impact:
- The study verifies the significant effectiveness of NO2 emission control policies.
- Findings provide evidence for the successful implementation of environmental regulations in China.
- The research contributes to understanding the long-term trends and policy impacts on air quality.
More Related Videos
12:26Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM
Published on: October 11, 2016
13.8K
08:54In vivo Application of the REMOTE-control System for the Manipulation of Endogenous Gene Expression
Published on: March 29, 2019
7.6K
Related Concept Videos
01:25Control Systems: Applications
1.2K
Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The...
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The...
1.2K
02:39Emission Spectra
76.4K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
76.4K
02:57The Sense of Self: Reflected Self-Appraisal and Social Comparison
56.1K
According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
56.1K
01:11Energy of a Satellite in a Circular Orbit
3.0K
Thousands of artificial satellites orbit the Earth every day at various distances from the Earth. Satellites that orbit the Earth below an altitude of 1,600 km are considered to be orbiting in low-Earth orbit (LEO). Research satellites and Earth observation satellites are usually placed in LEO, and mostly orbit the Earth in elliptical orbits. Navigation satellites are placed in medium-Earth orbit (MEO), ranging from 2,000 km to 36,000 km from the surface of the Earth. Meanwhile, communication...
3.0K
01:26Introduction to Special Senses
7.6K
Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive...
7.6K
01:16Circular Orbits and Critical Velocity for Satellites
5.5K
The Moon orbits around the Earth. In turn, the Earth (and other planets) orbit the Sun. The space directly above our atmosphere is filled with artificial satellites in orbit. One can examine the circular orbit, the simplest kind of orbit, to understand the relationship between the speed and the period of planets and satellites with respect to their positions and the bodies that they orbit.
Nicolaus Copernicus (1473-1543) first suggested that the Earth and all other planets orbit the Sun in...
Nicolaus Copernicus (1473-1543) first suggested that the Earth and all other planets orbit the Sun in...
5.5K