Satellite-Scale Solar-Induced Chlorophyll Fluorescence Prediction Based on Microwave Remote Sensing

Jiajia Ding; Haiqiu Liu; Kai Zhang; Qian Liu; Huimin Ma; Lichuan Gu

doi:10.3788/AOS250701

Acta Optica Sinica, Volume. 45, Issue 15, 1501001(2025)

Satellite-Scale Solar-Induced Chlorophyll Fluorescence Prediction Based on Microwave Remote Sensing

Jiajia Ding¹, Haiqiu Liu^1,2、*, Kai Zhang¹, Qian Liu^1,2, Huimin Ma^1,2, and Lichuan Gu^1,2

Author Affiliations

¹School of Information and Artificial Intelligence, Anhui Agricultural University, Anhui 230036, Hefei , China

²Anhui Provincial Engineering Research Center for Agricultural Information Perception and Intelligent Computing, Anhui 230036, Hefei , China

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Figures & Tables(9)

Fig. 1. Correlation analysis of SIF with microwave vegetation indices and optical vegetation indices

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Fig. 2. Technical roadmap

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Fig. 3. Comparison of SIF model predictions with satellite SIF/GPP products. (a) GOME-2 SIF in 2013; (b) GOME-2 SIF in 2014; (c) GOME-2 SIF in 2015; (d) TROPOMI SIF in 2018; (e) OCO-2 SIF in 2015; (f) MODIS GPP in 2014

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Fig. 4. Comparisons of performance of MVI-based SIF prediction model and current models under varying effective cloud coverage rate. R² values between model-predicted SIF and GOME-2 SIF in (a) 2013, (b) 2014, and (c) 2015; R² values between model-predicted SIF and (d) TROPOMI SIF in 2018, (e) OCO-2 SIF in 2015, and (f) MODIS GPP in 2014

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Fig. 5. Comparison of SIF predictions of optical and microwave remote sensing models with satellite SIF products. Comparison of microwave remote sensing SIF and GOME-2 SIF in (a) 2013, (b) 2014 and (c) 2015; comparison of optical remote sensing SIF and GOME-2 SIF in (d) 2013, (e) 2014, and (f) 2015

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Fig. 6. Comparison of performance of MVI-based and OVI-based SIF prediction under varying cloud coverage rate. (a) GOME-2 SIF in 2013; (b) GOME-2 SIF in 2014; (c) GOME-2 SIF in 2015

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Table 1. Data explanation

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Table 1. Data explanation

Dataset	Spatial resolution	Temporal resolution
GOME-2 SIF	0.5°	Daily
MOD11C1 LST	0.05°	Daily
MCD43C4 NBAR	0.05°	Daily
MOD17A2 GPP	500 m	8 d
MOD13C1 EVI/NDVI	0.05°	16 d
SYNI PAR	1°	Daily
MVI VODCA	0.25°	Daily
TROPOMI SIF	0.05°	Daily
OCO-2 SIF	2.25 km×1.29 km	16 d

Table 2. Comparisons of SIF model prediction performance under different weather conditions (clear and overcast)

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Table 2. Comparisons of SIF model prediction performance under different weather conditions (clear and overcast)

Product

GOME-2 SIF in 2013

GOME-2 SIF in 2014

GOME-2

SIF in 2015

TROPOMI SIF in 2018

OCO-2 SIF in 2015

MODIS GPP in 2014

_{c l e a r}^{2}

0.935/0.882

0.951/0.886

0.941/0.801

0.896/0.843

0.841/0.682

0.832/0.702

_{o v e r c a s t}^{2}

0.746/0.468

0.782/0.439

0.793/0.385

0.761/0.458

0.711/0.421

0.632/0.335

γ

0.025/0.051

0.022/0.058

0.017/0.048

0.019/0.048

0.013/0.033

0.021/0.039

Table 3. Comparisons of SIF model prediction performance under different conditions (clear and overcast)
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Table 3. Comparisons of SIF model prediction performance under different conditions (clear and overcast)
Product GOME-2 SIF in 2013 GOME-2 SIF in 2014 GOME-2 SIF in 2015
$R_{c l e a r}^{2}$ 0.935/0.934 0.951/0.944 0.941/0.925
$R_{o v e r c a s t}^{2}$ 0.746/0.607 0.782/0.648 0.793/0.681
$γ$ 0.025/0.042 0.022/0.041 0.017/0.031

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Jiajia Ding, Haiqiu Liu, Kai Zhang, Qian Liu, Huimin Ma, Lichuan Gu. Satellite-Scale Solar-Induced Chlorophyll Fluorescence Prediction Based on Microwave Remote Sensing[J]. Acta Optica Sinica, 2025, 45(15): 1501001

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Paper Information

Category: Atmospheric Optics and Oceanic Optics

Received: Mar. 6, 2025

Accepted: May. 12, 2025

Published Online: Aug. 18, 2025

The Author Email: Haiqiu Liu (lhq@ahau.edu.cn)

DOI:10.3788/AOS250701

CSTR:32393.14.AOS250701

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Data explanation

Table 1. Data explanation

Table 2. Comparisons of SIF model prediction performance under different weather conditions (clear and overcast)

Table 2. Comparisons of SIF model prediction performance under different weather conditions (clear and overcast)

Table 3. Comparisons of SIF model prediction performance under different conditions (clear and overcast)

Table 3. Comparisons of SIF model prediction performance under different conditions (clear and overcast)