際際滷

際際滷Share a Scribd company logo

Presentation gis

Download as PPTX, PDF
Sarjana Muda Sains (Sains Samudera)
Sarjana Muda Sains (Sains Samudera)

This document discusses remote sensing of clouds using satellite imagery. It begins by providing background on clouds, including their composition and importance in climate and weather. It then outlines different types of clouds classified by altitude. The document discusses various satellite systems used to observe clouds, including geostationary and polar-orbiting satellites. It explains how visible and infrared imagery from satellites can be used to identify cloud types and properties based on how they reflect or emit radiation. In conclusion, it restates the water cycle role of clouds and their importance in regulating the Earth's temperature.

1 of 23
REMOTE SENSING & GIS (MMS 3005) Sarjana Muda SaIns (Sains Samudera) REMOTE SENSING APPLICATION: CLOUD OBSERVATION GROUP MEMBERS: CHONG WEI SHENG UK27672 FITY SUSANTY HAWANG UK27680 NOR ADHAFATIHAH ZAINAL ABIDIN UK28187
Clouds are aesthetically appealing & add excitement to the atmosphere, without them, there would be no rain, snow, thunder, rainbows or lighting. CLOUD- visible aggregate tiny water droplets suspended in the air.
Climate change Cloud cover Cloud optical thickness Cloud top properties (temperature, pressure/height).
HIGH CLOUDS Cirrus (Ci) Cirrostratus (Cs) Cirrocumulus (Cc) LOW CLOUDS Strartus (St) Stratocumulus (Sc) Nimbostratus (Ns) MIDDLE CLOUDS Altostratus (As) Altocumulus (Ac) CLOUS WITH VERTICAL DEVELOPMENT Cumulus (Cu) Cumulonimbus (Cb)
High cloud: Cirrocumulus (small, round, white puffs)
High cloud: cirrostratus (halo)
Clouds with vertical development: cumulus (floating cottons)
Low cloud: stratus (resemble fog but not reach the ground)
Presentation gis
Orbit equator same rate as the earth. Remain about 36,00km above fixed spot on earth surface. Monitoring specific region. Use real time data system. Geostationary Satellite
Presentation gis
Complement the geostationary Satellite. Scan from north to south. Photographing clouds directly beneath them. Provide sharp picture in polar region. Circle earth at much lower altitude (~850km) Provide detailed photographic information. Polar Orbiting Satellite
Presentation gis
Presentation gis
Presentation gis
Presentation gis
senses reflected solar (sun) radiation that has a wavelength of 0.52 to 0.75 micrometers Show the sunlight reflected from clouds upper surface. Advantage? Disadvantage? Visible Photograph
Presentation gis
Satellite sensed energy as heat. Often colorized to bring out details. Warm low clouds radiate more energy (dark) Cold high clouds (light) Advantage? Disadvantage? Infrared Clouds Image
Presentation gis
SATELLITE
CONCLUSION A cloud is a visible mass of condensed droplets or frozen crystals floating in the atmosphere above the surface of the Earth or another planetary body. Clouds represent an important factor in the recycling of the important greenhouse gas water vapour from the planet surface to the atmosphere and back again to the surface. Evaporation of water removes heat from the planet surface, and represent an important cooling process. Clouds also can be divided into four groups which are high, low, middle & vertical development clouds.
Presentation gis

More Related Content

Presentation gis

  • 1. REMOTE SENSING & GIS (MMS 3005) Sarjana Muda SaIns (Sains Samudera) REMOTE SENSING APPLICATION: CLOUD OBSERVATION GROUP MEMBERS: CHONG WEI SHENG UK27672 FITY SUSANTY HAWANG UK27680 NOR ADHAFATIHAH ZAINAL ABIDIN UK28187
  • 2. Clouds are aesthetically appealing & add excitement to the atmosphere, without them, there would be no rain, snow, thunder, rainbows or lighting. CLOUD- visible aggregate tiny water droplets suspended in the air.
  • 3. Climate change Cloud cover Cloud optical thickness Cloud top properties (temperature, pressure/height).
  • 4. HIGH CLOUDS Cirrus (Ci) Cirrostratus (Cs) Cirrocumulus (Cc) LOW CLOUDS Strartus (St) Stratocumulus (Sc) Nimbostratus (Ns) MIDDLE CLOUDS Altostratus (As) Altocumulus (Ac) CLOUS WITH VERTICAL DEVELOPMENT Cumulus (Cu) Cumulonimbus (Cb)
  • 5. High cloud: Cirrocumulus (small, round, white puffs)
  • 7. Clouds with vertical development: cumulus (floating cottons)
  • 8. Low cloud: stratus (resemble fog but not reach the ground)
  • 10. Orbit equator same rate as the earth. Remain about 36,00km above fixed spot on earth surface. Monitoring specific region. Use real time data system. Geostationary Satellite
  • 12. Complement the geostationary Satellite. Scan from north to south. Photographing clouds directly beneath them. Provide sharp picture in polar region. Circle earth at much lower altitude (~850km) Provide detailed photographic information. Polar Orbiting Satellite
  • 17. senses reflected solar (sun) radiation that has a wavelength of 0.52 to 0.75 micrometers Show the sunlight reflected from clouds upper surface. Advantage? Disadvantage? Visible Photograph
  • 19. Satellite sensed energy as heat. Often colorized to bring out details. Warm low clouds radiate more energy (dark) Cold high clouds (light) Advantage? Disadvantage? Infrared Clouds Image
  • 22. CONCLUSION A cloud is a visible mass of condensed droplets or frozen crystals floating in the atmosphere above the surface of the Earth or another planetary body. Clouds represent an important factor in the recycling of the important greenhouse gas water vapour from the planet surface to the atmosphere and back again to the surface. Evaporation of water removes heat from the planet surface, and represent an important cooling process. Clouds also can be divided into four groups which are high, low, middle & vertical development clouds.