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水面輻射移動測量系統(tǒng)(AWRMMS,Above-Water Radiance Mobile Measuring System)是一款水色遙感表觀光學(xué)特性測量儀器,可用于各種船舶觀測、攜帶方便。系統(tǒng)將采集的表觀光譜信息、GPS數(shù)據(jù)與云臺姿態(tài)數(shù)據(jù),通過GPRS數(shù)據(jù)傳輸模塊自動上傳至預(yù)設(shè)的服務(wù)器,并同步存儲在本地可滾動存儲的SSD硬盤上。該儀器為精確的高光譜分析應(yīng)用提供極大的方便,可在UV/VIS范圍測量水面處向下太陽輻照度,海面輻亮度及天空輻亮度,帶有液晶顯示可同步顯示測量的光譜信息,服務(wù)器后臺配套處理軟件可以遠程查看、更改系統(tǒng)工作模式,并處理、計算得到離水輻亮度和遙感反射率等參數(shù),形成數(shù)據(jù)產(chǎn)品。為水體生物光學(xué)模型提供關(guān)鍵參數(shù),通過水色要素反演,可得到水體葉綠素、懸浮物質(zhì)和有色溶解有機物CDOM濃度等。此外,還可用來估算浮游植物的豐度和初級生產(chǎn)力,檢測赤潮、藻華,驗證衛(wèi)星水色觀測數(shù)據(jù)等。
水面輻射移動測量系統(tǒng)按照國際上通用的觀測幾何布置儀器,可使上行水面輻亮度傳感器與下行天空輻亮度傳感器與水面的夾角相同,方便計算離水輻亮度與遙感反射率,用于遙感建模,可用于各種船舶的現(xiàn)場測量。
系統(tǒng)配置
3個傳感器(1個輻照度和2個輻亮度)
數(shù)據(jù)采集控制器
水面輻射移動測量支架系統(tǒng)
數(shù)據(jù)分析軟件
數(shù)據(jù)采集控制器
配套數(shù)據(jù)采集控制器設(shè)有3通道,可同時連接三個傳感器,輸出方式為485總線輸出,顯示屏幕采用240*128分配率的OLED屏幕。側(cè)邊設(shè)有黑色天線桿,用于數(shù)據(jù)傳輸,上方設(shè)有日射標(biāo)桿,用于標(biāo)記日射平面,并通過下部的角度尺,來確定測量角度。內(nèi)置GPS定位系統(tǒng),可實時讀取設(shè)備經(jīng)緯度信息。此外,還可通過獲取的云臺姿態(tài)信息,手動將設(shè)備調(diào)至水平狀態(tài)。通過測量頁面可設(shè)置測量次數(shù)及測量間隔,測量過程中,會在頁面動態(tài)顯示對應(yīng)傳感器通道的光譜曲線,測量完畢后將數(shù)據(jù)自動保存在內(nèi)置SSD硬盤中并上傳至預(yù)設(shè)服務(wù)器。
水面輻射移動測量支架系統(tǒng)
水面輻射移動測量支架系統(tǒng)由三角支架、萬向夾、兩節(jié)伸縮桿和傳感器固定托架組成??墒箓鞲衅餮由熘岭x船足夠遠處進行測量,避免船舶影響。萬向夾裝置可根據(jù)太陽方位角手動進行水平旋轉(zhuǎn)。
軟件功能介紹
配套處理軟件是針對云臺高光譜傳感器(RAMSES)測量光譜數(shù)據(jù)的處理程序,其主要功能是:通過在默認輸入目錄下,自動讀取設(shè)備定標(biāo)文件、測量的數(shù)據(jù)原始文件,處理得到對應(yīng)的校準(zhǔn)后的光譜數(shù)據(jù)以及遙感反射率數(shù)據(jù),并在默認輸出目錄下用與原始數(shù)據(jù)的同名文件自動存儲。
特點及應(yīng)用
特點
高光譜、高靈敏度輻照度和輻亮度測量
輻亮度傳感器相對天頂角的測量角可調(diào)
帶手動轉(zhuǎn)臺,方位角可旋轉(zhuǎn),方位角可按預(yù)設(shè)與太陽方位角關(guān)聯(lián)
太陽方位角根據(jù)轉(zhuǎn)臺的日射標(biāo)尺指示器人工對準(zhǔn)
可調(diào)式三腳架可在非水平面的載具上使用,每個腳可獨立調(diào)節(jié)
低功耗,適合野外使用
一體式防水控制箱設(shè)計,體積小,系統(tǒng)緊湊,野外攜帶方便
應(yīng)用范圍廣,適合各種野外環(huán)境,從赤道到兩極都可使用
精度高,積分時間自適應(yīng),也可手動設(shè)置
模塊化系統(tǒng),用戶可根據(jù)測量要求選購
**的納米涂層技術(shù),防污染
應(yīng)用
離水輻亮度測量、遙感反射率測量
水色要素反演——葉綠素、藍藻、CDOM、懸浮物質(zhì)等
衛(wèi)星數(shù)據(jù)驗證——衛(wèi)星數(shù)據(jù)的地面實證
海洋水色遙感研究、湖泊研究
藻類水華研究、海洋生產(chǎn)力估算
氣候?qū)W——大氣研究
極地生物研究、海岸帶研究
遙感反演模型的建立,光學(xué)模型研究
技術(shù)參數(shù)
RAMSES傳感器參數(shù)列表
ACC余弦輻照度 | ARC輻亮度 | ASC球形輻照度 | |||
---|---|---|---|---|---|
UV | UV/VIS | VIS | VIS | VIS | |
波長(nm) | 280~500 | 280~720 | 320~950 | 320~950 | 320~950 |
檢測器 | 256 通道硅光電檢測器 | ||||
光譜采樣 [nm/pixel] | 2.2 | 2.2 | 3.3 | 3.3 | 3.3 |
光譜精度 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 |
實際通道 | 100 | 200 | 190 | 190 | 190 |
ACC余弦輻照度 | ARC輻亮度 | ASC球形輻照度 | ||
---|---|---|---|---|
UV | VIS | VIS | VIS | |
波長(nm) | 280~500 | 320~950 | 320~950 | 320~950 |
典型飽和度 (IT: 4 ms) 單位:Wm-2 nm-1 | 20 (300 nm)* 17 (360 nm)* 18 (500 nm)* | 10 (400 nm)* 8 (500 nm)* 14 (700 nm)* | 1Wm-2 nm-1 sr-1 (500 nm) | 20 (400 nm)* 12 (500 nm)* 15 (700 nm)* |
典型NEI (IT: 8 s) 單位:μWm-2 nm-1 | 0.85 (300 nm)** 0.75 (360 nm)** 0.80 (500 nm)** | 0.4 (400 nm)** 0.4 (500 nm)** 0.6 (700 nm)** | 0.25 μWm-2 nm-1 sr-1 | 0.8(400 nm)** 0.6(500 nm)** 0.8(700 nm)** |
收集器類型 | 余弦檢測器 | FOV:空氣中7° | 球形檢測2Pi | |
精度 | 優(yōu)于6~10%(取決于波長范圍) | 優(yōu)于6% | 優(yōu)于5% | |
積分時間 | 4 ms~8 s |
傳感器技術(shù)規(guī)格
測量原理 | 輻照度或輻亮度 | ||
T100響應(yīng)時間 | ≤ 10 s (脈沖模式) | 測量角度 | 40°±10° |
數(shù)據(jù)存儲 | - | 測量間隔 | ≤ 8 s(脈沖模式) |
外殼材質(zhì) | 不銹鋼(1.4571/1.4404)或鈦合金(3.7035) | ||
大小(L x Φ) | ACC:260 mm x 48 mm ASC:245 mm x 48 mm ARC:300 mm x 48 mm | 重量 | 不銹鋼:~ 0.9 kg 鈦:~ 0.7 kg |
數(shù)字接口 | RS-232 (TriOS) | 系統(tǒng)兼容性 | RS-232(TriOS協(xié)議) |
電源 | 8~12 VDC (± 3 %) | 功耗 | ≤ 0.85 W |
**壓力 | SubConn:30 bar | 防水等級 | IP68 |
采樣溫度 | +2~+40 °C | 環(huán)境溫度 | +2~+40 °C |
保存溫度 | -20~+80 °C | 流入速度 | 0.1~10 m/s |
校準(zhǔn)/維護間隔 | 24個月 | 選配傳感器 | 傾角傳感器:±45° 壓力傳感器:0~5 Bar、0~10 Bar、0~50 Bar可選 |
RAMSES-ACC-VIS RAMSES-ACC-UV
一、水質(zhì)研究:葉綠素、藍藻、TSM、CDOM反演監(jiān)測
1.基于光譜匹配的內(nèi)陸水體反演算法——《光譜學(xué)與光譜分析》2010
2.水體光譜測量與分析Ⅰ:水面以上測量法——《遙感學(xué)報》2004
3.水下光譜輻射測量技術(shù)——《海洋技術(shù)》2003
4.A Novel Statistical Approach for Ocean Colour Estimation of Inherent Optical Properties and Cyanobacteria Abundance in Optically Complex Waters——《Remote Sensing》2017
5.Atmospheric Correction Performance of Hyperspectral Airborne Imagery over a Small Eutrophic Lake under Changing Cloud Cover——《Remote Sensing》2017
二、光學(xué)模型研究
1.秋季太湖水下光場結(jié)構(gòu)及其對水生態(tài)系統(tǒng)的影響——《湖泊科學(xué)》2009
2.A model to predict spatial spectral and vertical changes in the average cosine of the underwater light fields: Implications for Remote sensing of shelf-seawaters——《Continental Shelf Research》2016
3.A practical model for sunlight disinfection of a subtropical maturation pond——《Water Research》2017
4.A spectral model for correcting sun glint and sky glint——《Conference paper: Ocean Optics》2016
5.Absorption correction and phase function shape effects on the closure of apparent optical properties——《Applied Optics》2016
三、衛(wèi)星數(shù)據(jù)驗證
1.Assessment of Atmospheric Correction Methods for Sentinel-2 MSI Images Applied to Amazon Floodplain Lakes——《Remote Sensing》2017
2.Impact of spectral resolution of in situ ocean color radiometric data in satellite matchups analyses——《Optics Express》2017
3.Response to Temperature of a Class of In Situ Hyperspectral Radiometers——《Journal of Atmospheric and Oceanic technology》2017
4.The impact of the microphysical properties of aerosol on the atmospheric correction of hyperspectral data in coastal waters——《Atmos. Meas. Tech.》2015
5.The Potential of Autonomous Ship-Borne Hyperspectral Radiometers for the Validation of Ocean Color Radiometry Data——《Remote Sensing》2016
四、光合作用研究
1.Basin-scale spatio-temporal variability and control of phytoplankton photosynthesis in the Baltic Sea: The first multiwavelength fast repetition rate fluorescence study operated on a ship-of-opportunity——《Journal of Marine Systems》2017
2.Chlorophyll a fluorescence lifetime reveals reversible UV?induced photosynthetic activity in the green algae Tetraselmis——《Eur Biophys J》2016
3.Physiological acclimation of Lessonia spicata to diurnal changing PAR and UV radiation: differential regulation among downregulation of photochemistry, ROS scavenging activity and phlorotannins as major photoprotective mechanisms——《Photosynth Res》2016
4.Primary production calculations for sea ice from bio-optical observations in the Baltic Sea——《Elementa: Science of the Anthropocene》2015
5.The Use of Rapid Light Curves to Assess Photosynthetic Performance of Different Ice- Algal Communities——《Norwegian University of Science and Technology》2017
五、光學(xué)參數(shù)測量
1.A novel method of measuring upwelling radiance in the hydrographic sub-hull——《J. Eur. Opt. Soc.》2016
2.Pelagic effects of offshore wind farm foundations in the stratified North Sea——《Progress in Oceanography》2017
3.Penetration of Visible Solar Radiation in Waters of the Barents Sea Depending on Cloudiness and Coccolithophore Blooms——《Oceanology》2017
4.Physical structures and interior melt of the central Arctic sea ice/snow in summer 2012——《Cold Regions Science and Technology》2016
6.Role of Climate Variability and Human Activity on Poopó Lake Droughts between 1990 and 2015 Assessed Using Remote Sensing Data——《Remote Sensing》2017
六、光脅迫研究
1.A (too) bright future? Arctic diatoms under radiation stress——《Polar Biol》2016
2.Comparison of bacterial growth in response to photodegraded terrestrial chromophoric dissolved organic matter in two lakes——《Science of the Total Environment》2017
3.Effects of halide ions on photodegradation of sulfonamide antibiotics: Formation of halogenated intermediates——《Water Research》2016
4.Effects of light and short-term temperature elevation on the 48-h hatching success of cold-stored Acartia tonsa Dana eggs——《Aquacult Int》2016
5.Effects of light source and intensity on sexual maturation, growth and swimming behaviour of Atlantic salmon in sea cages——《Aquacult Environ Interact》2017
七、水下光場研究
1.Effects of an Arctic under-ice bloom on solar radiant heating of the water column——《Journal of Geophysical Research: Oceans》2016
2.Influence of snow depth and surface flooding on light transmission through Antarctic pack ice——《Journal of Geophysical Research: Oceans》2016
八、藻類水華監(jiān)測
1.A Novel Statistical Approach for Ocean Colour Estimation of Inherent Optical Properties and Cyanobacteria Abundance in Optically Complex Waters——《Remote Sensing》2017
2.Empirical Model for Phycocyanin Concentration Estimation as an Indicator of Cyanobacterial Bloom in the Optically Complex Coastal Waters of the Baltic Sea——《Remote Sensing》2016
暫無數(shù)據(jù)!