Research on Fire Point Monitoring Based on GaoFen-4 Satellite Data With Bright Temperature Difference Correction

Yao WANG; Shi-xin WANG; Yi ZHOU; Fu-tao WANG; Zhen-qing WANG

doi:10.3964/j.issn.1000-0593(2021)11-3595-07

Spectroscopy and Spectral Analysis, Volume. 41, Issue 11, 3595(2021)

Research on Fire Point Monitoring Based on GaoFen-4 Satellite Data With Bright Temperature Difference Correction

Yao WANG^{1; 2;}, Shi-xin WANG^{1; 2; *;}, Yi ZHOU^{1; 2;}, Fu-tao WANG^{1; 2; *;}, and Zhen-qing WANG^{1; 2;}

Author Affiliations

1. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China

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Figures & Tables(11)

Fig. 1. Flowchart of fire point detection method

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Fig. 2. Scatter plots of surface brightness temperature before and during the disaster in Qinyuan, Shanxi province

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Fig. 3. Comparison chart of fitted background brightness temperature with different interpolation methods

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Fig. 4. Histogram and probability distribution of background brightness temperature fitting in potential fire points
(a): Histogram and probability distribution AT fitting; (b): Histogram and probability distribution IDW fitting;(c): Histogram and probability distribution OK fitting; (d): Histogram and probability distribution SK fitting

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Fig. 5. Results of forest fires detection of New Barhu Right Bannerin Inner Mongolia on April 21, 2019
(a): Results of AT; (b): Results of IDW; (c): Results of simple Kriging; (d): Results of ordinary Kriging

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Fig. 6. Results of forest fires detection of Qinyuan, Shanxi province on March 31, 2019
(a): Results of AT; (b): Results of IDW; (c): Results of simple Kriging; (d): Results of ordinary Kriging

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Table 1. Parameters of GaoFen-4 satellite

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Table 1. Parameters of GaoFen-4 satellite

参数	可见光波段	中红外波段
	0.45~0.90 μm
	0.45~0.52 μm
光谱范围	0.52~0.59 μm	3.50~4.1 μm
	0.63~0.69 μm
	0.77~0.89 μm
瞬时视场	50 m	400 m
单景成像区域	500 km×500 km	400 km×400 km
视场角(FOV)	0.8°×0.8°	0.66°×0.66°
观察能力	分钟级	秒级

Table 2. Statistical table of adaptive threshold method and three interpolation methods about fitting bright temperature values
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Table 2. Statistical table of adaptive threshold method and three interpolation methods about fitting bright temperature values
亮温拟合方法平均值标准差最大值最小值
Pre_AT 292.94 4.17 301.70 286.25
Pre_IDW 309.93 3.78 317.85 296.74
Pre_OK 309.69 3.65 318.05 298.70
Pre_SK 315.80 8.10 337.33 289.76

Table 3. GF-4/PMI Fire point detection of dual phase methods and single phase methods in New Barhu Right Bannerin Inner Mongolia
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Table 3. GF-4/PMI Fire point detection of dual phase methods and single phase methods in New Barhu Right Bannerin Inner Mongolia
自适应阈
值分割反距离
加权简单克
里金普通克
里金目视
解译
火点数 323 304 198 230 276
非火点数 144 163 269 237 -
漏分 19 2 74 53 -
错分 66 47 5 7 -

Table 4. GF-4/PMI Fire point detection of dual phase methods and single phase methods in Qinyuan, Shanxi Province
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Table 4. GF-4/PMI Fire point detection of dual phase methods and single phase methods in Qinyuan, Shanxi Province
自适应阈
值分割反距离
加权简单克
里金普通克
里金目视
解译
火点数 193 187 163 172 171
非火点数 16 22 46 37 -
漏分 2 2 17 4 -
错分 24 18 9 5 -

Table 5. The validation result of forest fire points detection in different methods

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Table 5. The validation result of forest fire points detection in different methods

	内蒙古				山西
	AT	IDW	OK	SK	AT	IDW	OK	SK
P	0.931 1	0.931 2	0.807 9	0.699 27	0.988 3	0.988 3	0.976 6	0.900 5
R	0.795 6	0.845 4	0.969 5	0.974 74	0.875 6	0.903 7	0.970 9	0.944 7
M	0.204 3	0.154 6	0.030 5	0.025 25	0.129 4	0.096 3	0.0290	0.055 2
F_β	0.819 5	0.861 2	0.932 2	0.903 55	0.891 7	0.925 9	0.973 1	0.93 67

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Yao WANG, Shi-xin WANG, Yi ZHOU, Fu-tao WANG, Zhen-qing WANG. Research on Fire Point Monitoring Based on GaoFen-4 Satellite Data With Bright Temperature Difference Correction[J]. Spectroscopy and Spectral Analysis, 2021, 41(11): 3595

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Paper Information

Category: Orginal Article

Received: Oct. 13, 2020

Accepted: --

Published Online: Dec. 17, 2021

The Author Email:

DOI:10.3964/j.issn.1000-0593(2021)11-3595-07

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Parameters of GaoFen-4 satellite

Table 1. Parameters of GaoFen-4 satellite

Table 2. Statistical table of adaptive threshold method and three interpolation methods about fitting bright temperature values

Table 2. Statistical table of adaptive threshold method and three interpolation methods about fitting bright temperature values

Table 3. GF-4/PMI Fire point detection of dual phase methods and single phase methods in New Barhu Right Bannerin Inner Mongolia

Table 3. GF-4/PMI Fire point detection of dual phase methods and single phase methods in New Barhu Right Bannerin Inner Mongolia

Table 4. GF-4/PMI Fire point detection of dual phase methods and single phase methods in Qinyuan, Shanxi Province

Table 4. GF-4/PMI Fire point detection of dual phase methods and single phase methods in Qinyuan, Shanxi Province

Table 5. The validation result of forest fire points detection in different methods

Table 5. The validation result of forest fire points detection in different methods