CN106053394A - Method for inversely analyzing transparency of water body by virtue of inherent optical parameter - Google Patents

Method for inversely analyzing transparency of water body by virtue of inherent optical parameter Download PDF

Info

Publication number
CN106053394A
CN106053394A CN201610570788.9A CN201610570788A CN106053394A CN 106053394 A CN106053394 A CN 106053394A CN 201610570788 A CN201610570788 A CN 201610570788A CN 106053394 A CN106053394 A CN 106053394A
Authority
CN
China
Prior art keywords
transparency
water body
inherent optical
remote sensing
algorithm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610570788.9A
Other languages
Chinese (zh)
Inventor
禹定峰
周燕
刘恩晓
解维浩
盖颖颖
李恒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oceanographic Instrumentation Research Institute Shandong Academy of Sciences
Original Assignee
Oceanographic Instrumentation Research Institute Shandong Academy of Sciences
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oceanographic Instrumentation Research Institute Shandong Academy of Sciences filed Critical Oceanographic Instrumentation Research Institute Shandong Academy of Sciences
Priority to CN201610570788.9A priority Critical patent/CN106053394A/en
Publication of CN106053394A publication Critical patent/CN106053394A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1717—Systems in which incident light is modified in accordance with the properties of the material investigated with a modulation of one or more physical properties of the sample during the optical investigation, e.g. electro-reflectance
    • G01N2021/1725—Modulation of properties by light, e.g. photoreflectance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N2021/1738—Optionally different kinds of measurements; Method being valid for different kinds of measurement
    • G01N2021/174—Optionally different kinds of measurements; Method being valid for different kinds of measurement either absorption-reflection or emission-fluorescence

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The invention belongs to the technical field of water color remote sensing, and relates to a method for inversely analyzing the transparency of a water body by virtue of an inherent optical parameter. The method for inversely analyzing the transparency of the water body by virtue of the inherent optical parameter comprises the following steps: (1) reading data of measured transparency and data of remote sensing reflectance; (2) calculating an absorption and scattering coefficient through the remote sensing reflectance; (3) constructing an algorithm for inversely analyzing the transparency of the water body by virtue of the inherent optical parameter; (4) calculating an error between an inverse analysis value and a measured value to estimate the accuracy of the algorithm by taking the measured transparency as a true value. Compared with the prior art, the method for inversely analyzing the transparency of the water body by virtue of the inherent optical parameter has the advantages that the inherent optical parameter of the water body can be estimated according to the remote sensing reflectance to further inversely analyze the transparency of the water body, so that the problem of time-space limits of a case-two water body color constituent inverse analysis algorithm is solved, and universal applicability is achieved.

Description

A kind of method utilizing inherent optical properties inverting water transparency
Technical field
The invention belongs to Ocean Color Remote Sensing technical field, relate to a kind of side utilizing inherent optical properties inverting water transparency Method.
Background technology
At present, the method utilizing remote sensing technology inverting water transparency mainly has experience method and semi-analytic algorithm.Experience Method is by setting up the statistical regression model between remotely-sensed data and the actual measurement of ground in real time or quasi real time transparency.Commonly use Method has single band algorithm, band ratio algorithm, multiband algorithm and Spectroscopy differential method etc..The advantage of the method is simple easy With, estimation precision is higher, but the optical characteristics of case Ⅱ waters is complicated and changeable, has the strongest regionality and seasonal feature.Cause This, empirical algorithms is easily limited by region and time, does not has universality.And semi-analytical method is managed with the underwater radiation transmission of light Based on Lun, calculate the absorptance of water constituent and scattering coefficient by Remote Sensing Reflectance, build actual measurement transparency data and The relation of water body inherent optical properties, to estimate water transparency, the method has preferable physical interpretation and the suitability.
Transparency is one of basic parameter describing water body optical property, is also an important indicator in water investigation, Reflect the transmittancy of water body.Militarily, transparency determines that the important parameter of submarine submergence depth and mine attack.? In multi-sensor, it is a kind of visual indication parameter, it can be estimated that the Eutrophic Extent of water body.Water transparency Change can have a strong impact on growth and the existence of the aquatic animal such as the Fish relying on visible ray to prey on and aquatic bird of submerged vegetation.This Outward, water transparency can estimate chlorophyll-a concentration even primary productivity.Therefore, the research of water transparency is to water environment The further investigation of change, aquatic ecosystem and primary productivity is significant.
Although conventional transparent degree measuring method is simple to operate, but the time space-variant of monitor large-area water transparency to be realized Change, it is clear that be unpractical.The advantages such as remote sensing technology has quickly, large area, dynamic coverage, can overcome the disadvantages that conventional measurement method is the longest And defect costly, especially can monitor the more unattainable region of personnel, thus be increasingly becoming the weight of monitoring water transparency Want and one of effective means.But, though empirical algorithms precision is high, but limited by time and space, be there is no universality.Cause This, the transparency inversion algorithm how obtaining commonly using becomes prior art problem to be solved.
Summary of the invention
In order to solve the problems referred to above that prior art exists, obtaining blanket transparency inversion algorithm, the present invention carries For a kind of method utilizing inherent optical properties inverting water transparency.
The present invention solves the technological means of its technical problem employing: one utilizes inherent optical properties inverting water body transparent The method of degree, the method can be applicable to the case Ⅱ waters such as inland and offshore.Use semi-analytic algorithm by Remote Sensing Reflectance inverting The absorption and scattering coefficienth of water body, then carries it into the transparency formula of Doron etc., inverting water transparency, and with actual measurement Transparency contrasts, and assesses the precision of this algorithm.
A kind of method utilizing inherent optical properties inverting water transparency of the present invention, comprises the following steps:
(1) actual measurement transparency data, the reading of Remote Sensing Reflectance data；
(2) absorption and scattering coefficienth is calculated by Remote Sensing Reflectance；
(3) algorithm utilizing inherent optical properties inverting water transparency is built；
(4) to survey transparency as true value, calculating inverting value and the deviation of measured value, the precision of assessment algorithm.
Algorithmic formula described in step (3) is:
In formula, SDD is transparency, C0Represent the intrinsic contrast of transparent scale and background water body, CminExpression can be identified by the human eye Minimum apparent contrast, KdV () is the vertical decrease coefficient of visible ray, c (v) is the ray attenuation coefficient of visible ray.Being excursion constant between 5-10, it is by transparent scale and the reflectance of background water body and Cmin Impact.Wherein, KdV () and c (v) are calculated by step (2).
The method utilizing inherent optical properties inverting water transparency of the present invention, compared with prior art, its advantage exists In: the inherent optical properties of water body, and then inverting water transparency can be estimated according to Remote Sensing Reflectance, solve two class water Body ocean color constituent inversion algorithm space-time restricted problem, has general applicability.
Accompanying drawing explanation
Fig. 1 is the error schematic diagram adopting transparency and the measured value being obtained by the present invention.
Detailed description of the invention
The method of inherent optical properties inverting water transparency is utilized to make further the present invention below by embodiment Describe in detail.
A kind of method utilizing inherent optical properties inverting water transparency, is embodied as step as follows:
(1) actual measurement transparency data, the reading of Remote Sensing Reflectance data
Read in transparency data and the MODIS-of the same period of totally 62 erect-positions that in May, 2009 and June gather in the yellow East Sea Tri-grades of Remote Sensing Reflectance data of Aqua.
(2) absorption and scattering coefficienth is calculated by Remote Sensing Reflectance
The research such as Doron shows, Kd(v)+c (v) and Kd(490)+c (490) height correlation, can carry out matching two by quadratic polynomial The relation of person, the coefficient of determination of model is up to 0.99, sees below formula:
Kd(v)+c (v)=0.0989x2+0.8879x-0.0467 (1)
In formula, x represents Kd(490)+c(490)。Kd(490) it is absorptance a (490) and the back scattering that at 490nm, water body is total Coefficient bb(490) function, can be expressed from the next:
Kd(490)=a (490)+3.47 × bb(490) (2)
C (490) is the total absorption coefficient a (490) of 490nm wave band water body, particulate matter backscattering coefficient bbpAnd pure water (490) The function b of scattering coefficientw(490), can be expressed from the next:
C (490)=a (490)+bbp(490)/0.02+bw(490) (3)
A (490) in formula (3) and (4), bbAnd b (490)bp(490) can be obtained by QAA algorithm, bw(490) it is 0.0031m-1。
Analyzed, as long as being obtained a by QAA algorithm (quasi-analytical algorothm, QAA) from above (490)、bbAnd b (490)bp(490), water transparency SDD can just be calculated.At present, QAA algorithm has evolved to the 5th edition, reference Wavelength can be selected for 550nm, 555nm or 560nm, and selection 555nm is as reference wavelength herein, QAA algorithm calculation process such as table 1 institute Showing, the contrast of calculated transparency and measured value is as shown in Figure 1.
Table 1 555nm is as the QAA algorithm steps of reference wavelength
Note: aw(555)=0.0596.
(3) algorithm utilizing inherent optical properties inverting water transparency is built
When light is propagated in uniform dielectric, the transparency in vertical direction can be expressed as:
S D D = l n ( C 0 C m i n ) K d ( v ) + c ( v ) - - - ( 4 )
In formula, SDD is transparency, C0Represent the intrinsic contrast of transparent scale and background water body, CminExpression can be identified by the human eye Minimum apparent contrast, KdV () is the vertical decrease coefficient of visible ray, c (v) is the ray attenuation coefficient of visible ray.Being excursion constant between 5-10, it is by transparent scale and the reflectance of background water body and Cmin Impact.Morel etc. find by 108323 between 1900-1991 are observed data analysiss,Most preferably take Value is 5.5, the most also takes this value and participates in the calculating of transparency.According to the K calculated in step (2)dV () and c (v), in conjunction with public Formula (4) can calculate water transparency.
(4) to survey transparency as true value, calculating inverting value and the deviation of measured value, the precision of assessment algorithm.
As seen from Figure 1, the transparency inverting value calculated according to step (3), itself and 62 actual measurement erect-position transparencys Average relative error be 78.4%, minimum relative error is 7.04%, and root-mean-square error is 8.48m.Result shows, the method Inversion accuracy ideal.

Claims (2)

1. the method utilizing inherent optical properties inverting water transparency, comprises the following steps:
(1) actual measurement transparency data, the reading of Remote Sensing Reflectance data；
(2) absorption and scattering coefficienth is calculated by Remote Sensing Reflectance；
(3) algorithm utilizing inherent optical properties inverting water transparency is built；
(4) to survey transparency as true value, calculating inverting value and the deviation of measured value, the precision of assessment algorithm.
The method utilizing inherent optical properties inverting water transparency the most according to claim 1, it is characterised in that: step (3) algorithmic formula described in is:
S D D = l n ( C 0 C m i n ) K d ( v ) + c ( v )
In formula, SDD is transparency, C0Represent the intrinsic contrast of transparent scale and background water body, CminExpression can be identified by the human eye Minimum apparent contrast, KdV () is the vertical decrease coefficient of visible ray, c (v) is the ray attenuation coefficient of visible ray.Being excursion constant between 5-10, it is by transparent scale and the reflectance of background water body and Cmin Impact；Wherein, KdV () and c (v) are calculated by step (2).
CN201610570788.9A 2016-07-20 2016-07-20 Method for inversely analyzing transparency of water body by virtue of inherent optical parameter Pending CN106053394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610570788.9A CN106053394A (en) 2016-07-20 2016-07-20 Method for inversely analyzing transparency of water body by virtue of inherent optical parameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610570788.9A CN106053394A (en) 2016-07-20 2016-07-20 Method for inversely analyzing transparency of water body by virtue of inherent optical parameter

Publications (1)

Publication Number Publication Date
CN106053394A true CN106053394A (en) 2016-10-26

Family

ID=57187273

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610570788.9A Pending CN106053394A (en) 2016-07-20 2016-07-20 Method for inversely analyzing transparency of water body by virtue of inherent optical parameter

Country Status (1)

Country Link
CN (1) CN106053394A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107024456A (en) * 2017-05-03 2017-08-08 水利部交通运输部国家能源局南京水利科学研究院 A kind of clear water method of replacing in situ for being used to predict river water body transparency
CN110082349A (en) * 2019-02-01 2019-08-02 南京师范大学 A kind of inland nutrition-enriched water of lake blue alga biomass ratio remote sensing estimation method based on OLCI
CN110836870A (en) * 2019-11-27 2020-02-25 中国科学院南京地理与湖泊研究所 GEE-based large-area lake transparency rapid drawing method
CN112345499A (en) * 2020-10-07 2021-02-09 大连理工大学 International boundary lake transparency inversion method based on multi-source remote sensing satellite
CN113406015A (en) * 2021-05-31 2021-09-17 内蒙古师范大学 Transparency calculation method and system for water bodies of near-shore and inland waters
CN116757102A (en) * 2023-08-21 2023-09-15 中国科学院南海海洋研究所 Apparent optical characteristic profile distribution estimation method based on inherent optical characteristics

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105044039A (en) * 2015-07-24 2015-11-11 北京环境特性研究所 Method for automatically inverting horizontal visibility according to laser radar data

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105044039A (en) * 2015-07-24 2015-11-11 北京环境特性研究所 Method for automatically inverting horizontal visibility according to laser radar data

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
魏国妹 等: "基于固有光学特性的北部湾透明度反演及其检验", 《高技术通讯》 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107024456A (en) * 2017-05-03 2017-08-08 水利部交通运输部国家能源局南京水利科学研究院 A kind of clear water method of replacing in situ for being used to predict river water body transparency
CN107024456B (en) * 2017-05-03 2019-07-26 水利部交通运输部国家能源局南京水利科学研究院 It is a kind of for predicting the clear water method of replacing in situ of river water body transparency
CN110082349A (en) * 2019-02-01 2019-08-02 南京师范大学 A kind of inland nutrition-enriched water of lake blue alga biomass ratio remote sensing estimation method based on OLCI
CN110082349B (en) * 2019-02-01 2021-11-02 南京师范大学 Remote sensing estimation method for inland eutrophication lake water body blue-green algae biomass ratio based on OLCI
CN110836870A (en) * 2019-11-27 2020-02-25 中国科学院南京地理与湖泊研究所 GEE-based large-area lake transparency rapid drawing method
CN110836870B (en) * 2019-11-27 2021-06-25 中国科学院南京地理与湖泊研究所 GEE-based large-area lake transparency rapid drawing method
CN112345499A (en) * 2020-10-07 2021-02-09 大连理工大学 International boundary lake transparency inversion method based on multi-source remote sensing satellite
CN112345499B (en) * 2020-10-07 2022-03-29 大连理工大学 International boundary lake transparency inversion method based on multi-source remote sensing satellite
CN113406015A (en) * 2021-05-31 2021-09-17 内蒙古师范大学 Transparency calculation method and system for water bodies of near-shore and inland waters
CN113406015B (en) * 2021-05-31 2023-01-13 内蒙古师范大学 Transparency calculation method and system for water bodies of near-shore and inland waters
CN116757102A (en) * 2023-08-21 2023-09-15 中国科学院南海海洋研究所 Apparent optical characteristic profile distribution estimation method based on inherent optical characteristics
CN116757102B (en) * 2023-08-21 2024-02-02 中国科学院南海海洋研究所 Apparent optical characteristic profile distribution estimation method based on inherent optical characteristics

Similar Documents

Publication Publication Date Title
CN106053394A (en) Method for inversely analyzing transparency of water body by virtue of inherent optical parameter
Farcas et al. Underwater noise modelling for environmental impact assessment
CN105954732B (en) A kind of the sediment reflectivity extracting method and system of laser radar depth measurement data
Gavazzi et al. Evaluation of seabed mapping methods for fine-scale classification of extremely shallow benthic habitats–application to the Venice Lagoon, Italy
Urmy et al. Measuring the vertical distributional variability of pelagic fauna in Monterey Bay
Wiebe et al. The acoustic properties of Salpa thompsoni
Chen et al. A comparative study of spatial interpolation methods for determining fishery resources density in the Yellow Sea
CN106053370A (en) Inversion method for offshore secchi disk depth based on HICO simulation
CN109406457A (en) A kind of submerged vegetation spectrum influence on water body bearing calibration based on hyperspectral
CN114297938B (en) Inversion method of optical shallow water depth based on neural network
Uchiyama et al. Mesoscale reproducibility in regional ocean modelling with a three-dimensional stratification estimate based on aviso-argo data
Middleton et al. El Nino effects and upwelling off South Australia
Dushaw et al. A comparative study of moored/point and acoustic tomography/integral observations of sound speed in fram strait using objective mapping techniques
Kan et al. Correction for effects of temperature and pressure on sound speed in shallow seafloor sediments
Nechad et al. Particulate backscattering and suspended matter concentration retrieval from remote-sensed turbidity in various coastal and riverine turbid waters
Zhongping KPAR: An optical property associated with ambiguous values
Basit et al. Estimation of seasonal vertically integrated primary productivity in Ambon Bay using the depth-resolved, time-integrated production model
CN108828066A (en) A method of submerged plant is observed using echo sounder
Evans et al. Bedforms on the northwest Irish Shelf: indication of modern active sediment transport and over printing of paleo-glacial sedimentary deposits
CN105184827B (en) A kind of method using spectral remote sensing image detection shallow water underwater reef beach
Chunhui et al. Estimation of manganese nodule coverage using multi-beam amplitude data
Zheng et al. Detecting water depth from remotely sensed imagery based on ELM and GA-ELM
Nechad et al. Particulate backscattering retrieval from remotely-sensed turbidity in various coastal and riverine turbid waters
Liu et al. Using a semi-analytical model to retrieve Secchi depth in coastal and estuarine waters
Zhan et al. Estimation of Optical Properties using QAA-V6 model based on MODIS data

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 266071 Shandong city of Qingdao province Zhejiang City Road No. 28

Applicant after: Marine Instrument Inst., Shandong Academy of Sciences

Address before: Miao road Laoshan District 266100 Shandong city of Qingdao Province, No. 37

Applicant before: Marine Instrument Inst., Shandong Academy of Sciences

COR Change of bibliographic data
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20161026

WD01 Invention patent application deemed withdrawn after publication