Images of Daily Hot Spot Distribution

Images of Daily Hot Spot Distribution

These Images indicate distribution of hot spots and clouds processed from the NOAA data received at FFPMP2 Jakarta Office. In the extraction process of hot spots from NOAA data, different algorithms are used for daytime and nighttime. 

For daytime capturing, contextual algorithms, which require multi-band data for screening clouds and sun glint on the sea, are employed .                                  

A pixel is eventually recognised as a hot spot after this screening process if it has 315k or higher in the brightness-temperature of channel 3. 

For nighttime capturing, simple algorithms, which incorporates only channel 3, are used and a pixel with 310k or higher in channel 3 is extracted as a hot spot.

Other information that should be understood when you look at the images are:

  1. A hot spot is recognised in a pixel basis. Each pixel has 1.1 km in resolution just under the orbit.

  2. Fires under cloud or smoke are possibly not detected due to the nature of the sensor.

  3. Cloud distribution indicated in the images is created from channel 5 data.

Monthly Hot Spot Images

These images are created with hot spots captured all through the month. Information that should be understood when you look at the images are:

  1. Capturing times vary depending on months.

  2. FFPMP2 operates capturing 1 to 3 times a day, and there are three patterns in the capturing coverage: whole Sumatra and Kalimantan, Sumatra only and Kalimantan only. Therefore capturing times are different between Sumatra and Kalimantan.

Fire Spread Risk Map 

"Fire Spread Risk Index" (FSRI) is derived from NDVI and land surface temperature. Therefore, FSRI is strongly correlated to  fire spreading risk.
FFPMP2 is making "Fire Spread Risk Map" by using NOAA data in every 10 days.

GMS-5 (Himawari) 

Geo-Stationary Meteorological Satellite 5 (GMS - 5), or "HIMAWARI", is operated by Meteorological Agency, Japan. It stays at 36,500 km in height, 140 degree E on the Equator, and observes the whole hemisphere every hour. FFPMP II receives the data during the daytime, and observes the changes of distribution of smoke and haze in a near-real time basis.

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