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NASA's Gateway to Astronaut Photography of Earth Contains over 30000 photos of 2500 cataloged urban lightscapes (urban night lights) taken from the International Space Station. Over 100 of these multispectral DSLR photos are of sufficient…

Physics and Society · Physics 2022-08-16 Christopher Small

Absorption of terahertz radiation by atmospheric water vapor is a serious impediment for radio astronomy and for long-distance communications. Transmission in the THz regime is dependent almost exclusively on atmospheric precipitable water…

Instrumentation and Methods for Astrophysics · Physics 2014-01-30 Jonathan Y. Suen , Michael T. Fang , Philip M. Lubin

We modelled the H-band spectrum obtained with the Infrared Imaging Spectrograph (IRIS2) at the Anglo-Australian Telescope in order to infer the cloud structure and composition of the atmosphere of the planet between 0.1 and 11 bar. Such…

Earth and Planetary Astrophysics · Physics 2013-03-15 Kimberly Bott , Lucyna Kedziora-Chudczer , Jeremy Bailey

Solar irradiance and its variations in the ultraviolet (UV) control the photochemistry in Earth's atmosphere and influence Earth's climate. The variability of Mg II h and k core-to-wing ratio, also known as the Mg II index, is highly…

Solar and Stellar Astrophysics · Physics 2025-01-07 K. Sowmya , M. Snow , A. I. Shapiro , N. A. Krivova , T. Chatzistergos , S. K. Solanki

UAVs showed great efficiency on scanning bridge decks surface by taking a single shot or through stitching a couple of overlaid still images. If potential surface deficits are identified through aerial images, subsequent ground inspections…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Zhexiong Shang , Chongsheng Cheng , Zhigang Shen

Monitoring and understanding forest dynamics is essential for environmental conservation and management. This is why the Swiss National Forest Inventory (NFI) provides countrywide vegetation height maps at a spatial resolution of 0.5 m. Its…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Yuchang Jiang , Marius Rüetschi , Vivien Sainte Fare Garnot , Mauro Marty , Konrad Schindler , Christian Ginzler , Jan D. Wegner

Modeling of planets' climate and habitability requires as fundamental input the UV emission of the hosting star. \citet{lovric2017} employed SORCE/SOLSTICE solar observations to introduce a UV color index which is a descriptor of the UV…

Solar and Stellar Astrophysics · Physics 2018-10-10 Serena Criscuoli , Valentina Penza , Mija Lovric , Francesco Berrilli

Solar activity during 2007--2009 was very low, causing anomalously low thermospheric density. A comparison of solar extreme ultraviolet (EUV) irradiance in the He II spectral band (26 to 34 nm) from the Solar Extreme ultraviolet Monitor…

Solar and Stellar Astrophysics · Physics 2015-06-15 Leonid Didkovsky , Joseph B. Gurman

Venus exhibits strong and changing contrasts at ultraviolet wavelengths apparently related to the clouds and the dynamics in the cloud layer, but to date their origin continues to be unknown. We investigate the nature of the UV contrasts…

Earth and Planetary Astrophysics · Physics 2025-02-10 Maarten Roos-Serote , Colin Wilson , Ryan MacDonald , Silvia Tellmann , Yeon Joo Lee , Igor Khatuntsev

Agrivoltaics (APV) is the dual use of land by combining agricultural crop production and photovoltaic (PV) systems. In this work, we have analyzed three different APV configurations: static with optimal tilt, vertically-mounted bifacial,…

Systems and Control · Electrical Eng. & Systems 2022-11-02 Kamran Ali Khan Niazi , Marta Victoria

The development of safe and reliable autonomous unmanned aerial vehicles relies on the ability of the system to recognise and adapt to changes in the local environment based on sensor inputs. State-of-the-art local tracking and trajectory…

Robotics · Computer Science 2025-02-12 Andrea Albanese , Yanran Wang , Davide Brunelli , David Boyle

We present a project to map the artificial sky brightness in Europe in the main astronomical photometrical bands with a resolution better than 3 km. The aim is to understand the state of night sky pollution in Europe, to quantify the…

Astrophysics · Physics 2007-05-23 P. Cinzano , F. Falchi , C. D. Elvidge , K. E. Baugh

We present preliminary results on the calculation of synthetic spectra obtained with the stellar model atmospheres developed by Cardona, Crivellari, and Simonneau. These new models have been used as input within the SYNTHE series of codes…

Astrophysics · Physics 2007-10-09 L. H. Rodriguez-Merino , O. Cardona , E. Bertone , M. Chavez , A. Buzzoni

We set out to evaluate the potential of the Colombian Andes for millimeter-wave astronomical observations. Previous studies for astronomical site testing in this region have suggested that nighttime humidity and cloud cover conditions make…

Instrumentation and Methods for Astrophysics · Physics 2017-09-18 Germán Chaparro Molano , Oscar Leonardo Ramírez Suárez , Oscar Restrepo , Alexander Martínez

We present new observations of the cosmic ultraviolet background (CUVB) at high Galactic latitudes ($|b| > 40^{\circ}$), made using the Alice UV spectrograph on board the New Horizons spacecraft. These observations were taken at about 57 AU…

Cloud detection is essential for atmospheric retrievals, climate studies, and weather forecasting. We analyze infrared radiances from the Infrared Atmospheric Sounding Interferometer (IASI) onboard Meteorological Operational (MetOp)…

Atmospheric and Oceanic Physics · Physics 2025-08-15 Chiara Zugarini , Cristina Sgattoni , Luca Sgheri

The study presents an effort to classify the territories of a specific area, according to similarities in the estimated potential of their renewable sources, considering also their economic and sociodemographic structure and their…

Computers and Society · Computer Science 2019-11-13 Chiara Scaramuzzino , Giulia Garegnani , Pietro Zambelli

Designing early warning systems for harsh weather and its effects, such as urban flooding or landslides, requires accurate short-term forecasts (nowcasts) of precipitation. Nowcasting is a significant task with several environmental…

Machine Learning · Computer Science 2023-02-10 Christos Kaparakis , Siamak Mehrkanoon

This research article explores potential influencing factors of solar photovoltaic (PV) system adoption by municipal authorities in Germany in the year 2019. We derive seven hypothesized relationships from the empirical literature on…

General Economics · Economics 2022-12-13 Maren Springsklee , Fabian Scheller

One of the objectives of the NASA LWS Institute on Nowcasting of Atmospheric Drag for LEO Spacecraft was to investigate whether and how to increase the accuracy of atmospheric drag models by improving the quality of the solar forcing…

Solar and Stellar Astrophysics · Physics 2018-07-04 A. Vourlidas , S. Bruinsma
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