Calibration of airborne imaging spectrometer data acquired from Poyang Lake area, China

1998 ◽  
Author(s):  
Liangpei Zhang ◽  
Deren Li ◽  
Qingxi Tong ◽  
Lanfen Zheng
Keyword(s):  
Poyang Lake ◽  
Lake Area ◽  
Imaging Spectrometer ◽  
Airborne Imaging ◽  
Poyang Lake Area ◽  
Spectrometer Data

Minimizing soil moisture variations in multi-temporal airborne imaging spectrometer data for digital soil mapping

Geoderma ◽  
2019 ◽  
Vol 337 ◽  
pp. 607-621 ◽  
Author(s):  
Sanne Diek ◽  
Sabine Chabrillat ◽  
Marco Nocita ◽  
Michael E. Schaepman ◽  
Rogier de Jong
Keyword(s):  
Soil Moisture ◽  
Soil Mapping ◽  
Digital Soil Mapping ◽  
Imaging Spectrometer ◽  
Multi Temporal ◽  
Airborne Imaging ◽  
Spectrometer Data

scholarly journals Detection and Quantification of Snow Algae with an Airborne Imaging Spectrometer

2001 ◽  
Vol 67 (11) ◽  
pp. 5267-5272 ◽  
Author(s):  
Thomas H. Painter ◽  
Brian Duval ◽  
William H. Thomas ◽  
Maria Mendez ◽  
Sara Heintzelman ◽  
...  
Keyword(s):  
Sierra Nevada ◽  
Wavelength Range ◽  
Spectral Reflectance ◽  
Infrared Imaging ◽  
Spectral Signature ◽  
Absorption Feature ◽  
Imaging Spectrometer ◽  
Algal Concentration ◽  
Airborne Imaging ◽  
Spectrometer Data

ABSTRACT We describe spectral reflectance measurements of snow containing the snow alga Chlamydomonas nivalis and a model to retrieve snow algal concentrations from airborne imaging spectrometer data. Because cells of C. nivalis absorb at specific wavelengths in regions indicative of carotenoids (astaxanthin esters, lutein, β-carotene) and chlorophylls a and b, the spectral signature of snow containing C. nivalis is distinct from that of snow without algae. The spectral reflectance of snow containing C. nivalis is separable from that of snow without algae due to carotenoid absorption in the wavelength range from 0.4 to 0.58 μm and chlorophyll a and babsorption in the wavelength range from 0.6 to 0.7 μm. The integral of the scaled chlorophyll a and b absorption feature (I 0.68) varies with algal concentration (Ca ). Using the relationshipCa = 81019.2 I 0.68+ 845.2, we inverted Airborne Visible Infrared Imaging Spectrometer reflectance data collected in the Tioga Pass region of the Sierra Nevada in California to determine algal concentration. For the 5.5-km2 region imaged, the mean algal concentration was 1,306 cells ml−1, the standard deviation was 1,740 cells ml−1, and the coefficient of variation was 1.33. The retrieved spatial distribution was consistent with observations made in the field. From the spatial estimates of algal concentration, we calculated a total imaged algal biomass of 16.55 kg for the 0.495-km2 snow-covered area, which gave an areal biomass concentration of 0.033 g/m2.

Radiometric restoration of airborne imaging spectrometer data

1998 ◽  
Author(s):  
Xiaofang Guo ◽  
Runsheng Wang ◽  
Jicheng Cheng ◽  
Qinghua Wang
Keyword(s):  
Imaging Spectrometer ◽  
Airborne Imaging ◽  
Spectrometer Data

Study of crop growth parameters using Airborne Imaging Spectrometer data

2001 ◽  
Vol 22 (12) ◽  
pp. 2401-2411 ◽  
Author(s):  
N. K. Patel ◽  
C. Patnaik ◽  
S. Dutta ◽  
A. M. Shekh ◽  
A. J. Dave
Keyword(s):  
Growth Parameters ◽  
Crop Growth ◽  
Imaging Spectrometer ◽  
Airborne Imaging ◽  
Spectrometer Data

Physiological and Biochemical Characteristics and Desilication Ability of Bacillus Mucilaginosus Screened from Poyang Lake Area of Jiangxi Province

2011 ◽  
Vol 308-310 ◽  
pp. 1604-1608
Author(s):  
Li Ming Zhang ◽  
De Si Sun ◽  
Yang Bo
Keyword(s):  
Nitrogen Source ◽  
Poyang Lake ◽  
Jiangxi Province ◽  
Lake Area ◽  
Free Medium ◽  
Bacillus Mucilaginosus ◽  
Biochemical Characteristics ◽  
Physiological And Biochemical Characteristics ◽  
Poyang Lake Area ◽  
Physiological And Biochemical

18 strains of Bacillus mucilaginosus were sampled from Poyang Lake area of Jiangxi province in China . Morphology and physio-biochemical characteristics and desilication ability on bauxite were studied. The results showed that all strains are rods and produced spores from elliptical to circular， while strains of P8、P11、P15 are short rod. Gram reaction of 18 strains are negative.The strains can use nitrites and ammonium salt as nitrogen source, and survived in the nitrogen free medium. P4、P3 showed strong desilication ability, compared to blank control the content of soluble SiO2 increased to 4.57、4.13 times respectively; P2、 P7、P9 could tolerate 4% NaCl and were growing well at the temperature ranging from 25~35 °C.

Research on Quick Monitoring and Evaluating of Flood Disaster in Poyang Lake Area Based on Remote Sensing

2013 ◽  
Vol 303-306 ◽  
pp. 740-743
Author(s):  
Qun Sun
Keyword(s):  
Remote Sensing ◽  
Poyang Lake ◽  
Rapid Assessment ◽  
Economic Loss ◽  
Flood Disaster ◽  
Lake Area ◽  
Gis Technology ◽  
Remote Sensing Monitoring ◽  
Rs And Gis ◽  
Poyang Lake Area

Flood disaster happens frequently in Poyang Lake area, which causes a huge economic loss each year. In order to prevent and reduce the loss caused by flood disaster, and to promote the economic development in Poyang Lake area, the author has researched methods of quick monitoring and evaluating of flood disaster based on RS and GIS. Firstly, the author discusses the technical means of monitoring and assessment of flood disaster, which includes remote monitoring technology and GIS technology. Secondly, taking Poyang Lake area for example, the author introduces the methods and processes of remote sensing monitoring of flood disaster. Finally, various data of damage has been computed rapidly to achieve the purpose of rapid assessment of the loss by using the function of spatial analysis of GIS and withdrawing flooded areas from the remote sensing monitoring image combined with background data.

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