scholarly journals A Fourier transform spectroradiometer for ground-based remote sensing of the atmospheric downwelling long-wave radiance

2019 ◽  
Vol 12 (1) ◽  
pp. 619-635 ◽  
Author(s):  
Giovanni Bianchini ◽  
Francesco Castagnoli ◽  
Gianluca Di Natale ◽  
Luca Palchetti
Keyword(s):  
Remote Sensing ◽  
Fourier Transform ◽  
Remote Control ◽  
High Altitude ◽  
Far Infrared ◽  
Balloon Flight ◽  
Long Wave ◽  
Stratospheric Balloon ◽  
Spectrally Resolved ◽  
Better Than

Abstract. The Radiation Explorer in the Far Infrared – Prototype for Applications and Development (REFIR-PAD) is a Fourier transform spectroradiometer that has been designed to operate from both stratospheric balloon platforms and the ground. It has been successfully deployed in a stratospheric balloon flight and several ground-based campaigns from high-altitude sites, including the current installation at the Italian–French Concordia Antarctic station. The instrument is capable of operating autonomously with only a limited need of remote control and monitoring and provides a multiyear dataset of spectrally resolved atmospheric downwelling radiances, measured in the 100–1500 cm−1 spectral range with 0.4 cm−1 resolution and a radiometric uncertainty of better than 0.85 mW(m2srcm-1)-1.

scholarly journals A Fourier transform spectroradiometer for ground-based remote sensing of the atmospheric downwelling long-wave radiance

2018 ◽  
Author(s):  
Giovanni Bianchini ◽  
Francesco Castagnoli ◽  
Gianluca Di Natale ◽  
Luca Palchetti
Keyword(s):  
Remote Sensing ◽  
Fourier Transform ◽  
Remote Control ◽  
High Altitude ◽  
Far Infrared ◽  
Balloon Flight ◽  
Long Wave ◽  
Stratospheric Balloon ◽  
Spectrally Resolved ◽  
Better Than

Abstract. The Radiation Explorer in the Far Infrared - Prototype for Applications and Development (REFIR-PAD) is a Fourier transform spectroradiometer that has been designed to operate both from stratospheric balloon platform and from ground. It has been successfully deployed in a stratospheric balloon flight and several ground based campaigns from high altitude sites, including the current installation in the Concordia Italian-French Antarctic station. The instrument is capable to operate autonomously with only a limited need of remote control and monitoring, and is providing a multi-year dataset of spectrally resolved atmospheric downwelling radiances, measured in the 100–1500 cm−1 spectral range with 0.4 cm−1 resolution and a radiometric uncertainty better than 0.85 mW/m2 sr cm−1.

scholarly journals Technical note: First spectral measurement of the Earth's upwelling emission using an uncooled wideband Fourier transform spectrometer

2006 ◽  
Vol 6 (12) ◽  
pp. 5025-5030 ◽  
Author(s):  
L. Palchetti ◽  
C. Belotti ◽  
G. Bianchini ◽  
F. Castagnoli ◽  
B. Carli ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Far Infrared ◽  
Space Mission ◽  
Technical Note ◽  
Spectral Measurement ◽  
Tropical Region ◽  
Fourier Transform Spectrometer ◽  
Field Campaign ◽  
Infrared Signature ◽  
Stratospheric Balloon

Abstract. The first spectral measurement of Earth's emitted radiation to space in the wideband range from 100 to 1400 cm−1 with 0.5 cm−1 spectral resolution is presented. The measurement was performed from a stratospheric balloon in tropical region using a Fourier transform spectrometer, during a field campaign held in Brazil in June 2005. The instrument, which has uncooled components including the detector module, is a prototype developed as part of the study for the REFIR (Radiation Explorer in the Far InfraRed) space mission. This paper shows the results of the field campaign with particular attention to the measurement capabilities of the prototype. The results are compared with measurements taken by IASI-balloon (Infrared Atmospheric Sounding Interferometer – Balloon version), aboard the same platform, and with forward model estimations. The infrared signature of clouds is observed in the measurements.

scholarly journals First spectral measurement of the Earth's upwelling emission using an uncooled wideband Fourier transform spectrometer

2006 ◽  
Vol 6 (3) ◽  
pp. 4061-4080 ◽  
Author(s):  
L. Palchetti ◽  
C. Belotti ◽  
G. Bianchini ◽  
F. Castagnoli ◽  
B. Carli ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Far Infrared ◽  
Space Mission ◽  
Spectral Measurement ◽  
Tropical Region ◽  
Fourier Transform Spectrometer ◽  
Field Campaign ◽  
Atmospheric Sounding ◽  
Infrared Signature ◽  
Stratospheric Balloon

Abstract. The first spectral measurement of Earth's emitted radiation to space in the wideband range from 100 to 1400 cm−1 with 0.5 cm−1 spectral resolution is presented. The measurement was performed from a stratospheric balloon in tropical region using a Fourier transform spectrometer, during a field campaign held in Brazil in June 2005. The instrument, which has uncooled components including the detector module, is a prototype developed as part of the study for the REFIR (Radiation Explorer in the Far InfraRed) space mission. This paper shows the results of the field campaign with particular attention to the measurement capabilities of the prototype. The results are compared with measurements taken by IASI-balloon (Infrared Atmospheric Sounding Interferometer – Balloon version), aboard the same platform, and with forward model estimations. The infrared signature of clouds is observed in the measurements.

scholarly journals Preparation and Implementation of a Test Flight of Lightweight, Unmanned Stratospheric Balloon with Gopro Camera Mounted and Analysis of Acquired Material

2019 ◽  
Vol 2019 (2) ◽  
pp. 15-26
Author(s):  
Hubert Skoneczny
Keyword(s):  
Remote Sensing ◽  
Unmanned Aerial Vehicle ◽  
Remote Monitoring ◽  
Aerial Images ◽  
Balloon Flight ◽  
Aerial Vehicle ◽  
Stratospheric Balloon ◽  
Test Flight ◽  
Long Endurance ◽  
Video Material

Abstract Publication contains a description of the preparation and the implementation of a test flight of a stratospheric balloon with a mounted camera GoPro Hero3. Description includes: used equipment, its parameters, role in the success of the mission and the difficulties and limitations that the project team encountered during the preparation and implementation of the flight. The mission was attended by a team of six engineers and scientists from the Remote Sensing Division, who were also involved in the implementation of the HESOFF project. One of the main goals of the HESOFF project was to obtain aerial images on the Krotoszyńska Plate (woj. wielkopolskie) using the Unmanned Aerial Vehicle (UAV) and to carry out remote monitoring of oak stands. The primary goal of an experimental balloon flight was to check the technical operational capability and gain experience in planning and implementing this type of project. During the balloon raising, the video material was acquired in the form of a recording, which later was analyzed. On the basis of the collected information, the conclusions regarding the possibility of implementing a long endurance flight in the stratosphere, illustrating (using a multisensor platform) research surfaces of the HESOFF project were presented. The stages of implementation of the presented mission were divided into following parts: preparation of the flight with the completion of equipment and necessary documents (flight permission), proper flight realization, understood as the release of the balloon and identification of the place where the equipment landed, as well as analysis and presentation of the results.

High Altitude Balloon Flight Test of the GRAD Experiment

1990 ◽  
Author(s):  
Robert J. Hicks ◽  
David H. Jenkins
Keyword(s):  
High Altitude ◽  
Flight Test ◽  
Balloon Flight

scholarly journals Variety Identification of Orchids Using Fourier Transform Infrared Spectroscopy Combined with Stacked Sparse Auto-Encoder

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2506 ◽  
Author(s):  
Yunfeng Chen ◽  
Yue Chen ◽  
Xuping Feng ◽  
Xufeng Yang ◽  
Jinnuo Zhang ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Principal Component ◽  
Fourier Transform Infrared ◽  
Spectroscopic Technique ◽  
Variety Identification ◽  
Support Vector ◽  
K Nearest Neighbors ◽  
Discriminant Models ◽  
The Fourier Transform ◽  
Better Than

The feasibility of using the fourier transform infrared (FTIR) spectroscopic technique with a stacked sparse auto-encoder (SSAE) to identify orchid varieties was studied. Spectral data of 13 orchids varieties covering the spectral range of 4000–550 cm−1 were acquired to establish discriminant models and to select optimal spectral variables. K nearest neighbors (KNN), support vector machine (SVM), and SSAE models were built using full spectra. The SSAE model performed better than the KNN and SVM models and obtained a classification accuracy 99.4% in the calibration set and 97.9% in the prediction set. Then, three algorithms, principal component analysis loading (PCA-loading), competitive adaptive reweighted sampling (CARS), and stacked sparse auto-encoder guided backward (SSAE-GB), were used to select 39, 300, and 38 optimal wavenumbers, respectively. The KNN and SVM models were built based on optimal wavenumbers. Most of the optimal wavenumbers-based models performed slightly better than the all wavenumbers-based models. The performance of the SSAE-GB was better than the other two from the perspective of the accuracy of the discriminant models and the number of optimal wavenumbers. The results of this study showed that the FTIR spectroscopic technique combined with the SSAE algorithm could be adopted in the identification of the orchid varieties.

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