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Journals >Acta Optica Sinica >Volume 42 >Issue 18 >Page 1801007 > Article

Acta Optica Sinica
Vol. 42, Issue 18, 1801007 (2022)

Experimental Evaluation of Temperature Dependence of Pure Water Absorption Coefficient in Near-Infrared Domain

Liangfeng Chen¹, Zhongping Lee^1、2、*, Gong Lin¹, Yongchao Wang¹, Junwei Wang¹, and Wendian Lai¹

Author Affiliations

¹State Key Lab of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, Fujian, China

²School for the Environment, University of Massachusetts Boston, Boston 02125, MA, USA

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DOI: 10.3788/AOS202242.1801007 Cite this Article Set citation alerts

Liangfeng Chen, Zhongping Lee, Gong Lin, Yongchao Wang, Junwei Wang, Wendian Lai. Experimental Evaluation of Temperature Dependence of Pure Water Absorption Coefficient in Near-Infrared Domain[J]. Acta Optica Sinica, 2022, 42(18): 1801007 Copy Citation Text

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Temperature correction coefficient ΨT for aw obtained from Rottgers et al.[14] in the wavelength range of 700-900 nm

Fig. 1. Temperature correction coefficient Ψ_T for a_wobtained from Rottgers et al.^[14] in the wavelength range of 700-900 nm

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Photo of the water-filled tank along with the radiometer when taking measurement of Lt via above-water approach (AWA)

Fig. 2. Photo of the water-filled tank along with the radiometer when taking measurement of L_t via above-water approach (AWA)

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Fig. 3. R_rs spectra at different temperatures obtained in this study. (a) Measured on 4 December, 2021; (b) measured on 13 December, 2021

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Fig. 4. a_p spectra of the water-sediment mixture at different temperature (or time) of this study

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Fig. 5. Normalized R_rs spectra R_{rs_Nor} at different temperatures

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Fig. 6. Relationship between

D_{R_{r s}}

and

{D_{a}}_{w}

(λ₁ as 740 nm and λ₂ as 795 nm). (a) Change of

D_{R_{r s}}

and

{D_{a}}_{w}

for T in a range of 7-51 ℃;(b) scatterplot between

D_{R_{r s}}

(740∶795) and

{D_{a}}_{w}

(740∶795)

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Fig. 7. Relationship between

D_{R_{r s}}

and

{D_{a}}_{w}

(λ₁ as 795 nm and λ₂ as 835 nm). (a) Changes of

D_{R_{r s}}

and

{D_{a}}_{w}

for T in a range of 7-51 ℃;(b) scatterplot between

D_{R_{r s}}

(795 nm/835 nm) and

{D_{a}}_{w}

(795 nm/835 nm)

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Fig. 8. Change of

D_{R_{r s}}

caused by changes of a_p and b_bp

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References (28)

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Liangfeng Chen, Zhongping Lee, Gong Lin, Yongchao Wang, Junwei Wang, Wendian Lai. Experimental Evaluation of Temperature Dependence of Pure Water Absorption Coefficient in Near-Infrared Domain[J]. Acta Optica Sinica, 2022, 42(18): 1801007

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