Landsat 8 satellite was successfully launched

Source: Internet
Author: User

 

In February 11, 2013, NASA successfully launched the Landsat 8 satellite, re-injecting fresh blood into the Landsat program, which has taken over the past 40 years. Landsat-8 carries two major loads: Oli and TIRS. Among them, Oli (full name: operational land imager, land imager) was developed by Bauer Aerospace Technology Corporation in karaddo; TIRS (full name: thermal infrared sensor, thermal infrared sensor ), developed by NASA's godad Space Flight Center.

Figure: Oli land imager Structure

The Oli land imager consists of nine bands with a spatial resolution of 30 meters, including a 15-meter full color band with an imaging width of 185X185 km.

Oli includes all the bands of the mobile phone number + sensor. To avoid atmospheric absorption, Oli re-adjusts the band. The larger adjustment is Oli band5 (0.845-0.885 μm ), the water vapor absorption characteristics at 0.825 μm are excluded; The Oli full color band band8 band has a narrow range. This method can better distinguish between vegetation and vegetation-less features in the full color image;

In addition, there are two new bands: Band 1 (Band 1; 0.433-0.453 μm), which are mainly used for coastal observation and short-wave infrared band (band 9; 1.360-1.390 μm) strong water vapor absorption features can be used for cloud detection; Near Infrared band5 and short-wave infrared band9 are close to the band corresponding to the modem.

Table 1: Oli land imager Oli

Oli land imagers

*

Serial number

Band (μm)

Spatial Resolution (m)

Serial number

Band (μm)

Spatial Resolution (m)

1

0.433-0.453

30

 

 

 

2

0.450-0.515

30

1

0.450-0.515

30

3

0.525-0.600

30

2

0.525-0.605

30

4

0.630-0.680

30

3

0.630-0.690

30

5

0.845-0.885

30

4

0.775-0.900

30

6

1.560-1.660

30

5

1.550-1.750

30

7

2.100-2.300

30

7

2.090-2.350

30

8

0.500-0.680

15

8

0.520-0.900

15

9

1.360-1.390

30

 

 

 

 

The TIRS owner says the TIRS load carried on the LandSat-8 will be the most advanced ever and the best performing TIRS. TIRS will collect heat loss from the Earth's two thermal zones, with the goal of understanding water consumption in the observed zones, especially in the western United States.

Table 2: TIRS load parameters

Band #

Center wavelength (μm)

Minimum band boundary (μm)

Maximum band boundary (μm)

Spatial Resolution (m)

10

10.9

10.6

11.2

100

11

12.0

11.5

12.5

100

According to NASA's plan, Landsat 8 had to go through a 100-day adjustment period before returning the observation results to the ground.

References: http://www.sciencedirect.com/science/article/pii/S0034425712000363

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.