With the advancement of high spatial resolution imaging spectroscopy, an accurate surface reflectance retrieval is needed to derive relevant physical variables for land cover mapping, soil, and vegetation monitoring. One challenge deal with tree shadows using atmospheric correction models if crown transmittance Tc not properly taken into account. This requires knowledge complex radiation mechan...

The present study aims to determine spectral bands that are best suited for characterizing rice agronomic variables. The data for this study came from ground-level hyperspectral reflectance measurements of rice at different stage. Reflectance was measured in discrete narrow bands between 350 and 2500 nm. Observed rice agronomic variables included leaf area index (LAI), wet biomass (WBM includin...

— We measured the fireball Lorentz factor of GRB 060418 by the direct observation of the onset of the NIR afterglow carried with the REM telescope. We found Γ0 ∼ 400. PACS 98.70.Rz – gamma-ray bursts..

Silicon-based digital camera sensors exhibit significant sensitivity beyond the visible spectrum (400-700nm). They are able to capture wavelengths up to 1100 nm, i.e., they are sensitive to near-infrared (NIR) radiation. This additional information is conventionally treated as noise and is absorbed by a NIRblocking filter affixed to the sensor. We show that retaining instead of removing NIR inf...

The current operational multi-band atmospheric correction algorithms implemented by NASA and NOAA for global remote sensing of ocean color from VIIRS (Visible Infrared Imaging Radiometer Suite) data are mostly based on the 2-band version SeaWiFS (Sea-Viewing Wide Field-of-View Sensor) algorithm. These generally use two NIR bands, one centered near 0.75 μm other 0.865 μm, a band ratio method der...

The major objective of this study was to develop site-specific spectral vegetation index-LAI relationship for two cotton varieties cultivated in the Central State Farm (CSF) Hisar, using multi-date radiometric and LAI measurements as well as digital data of LISSIII onboard Indian Remote Sensing Satellite (IRS). The field-level LAI was measured using LAI-2000 Plant Canopy Analyser and Aerosol op...

Comprehensive investigations on the between-sensor comparability among Landsat sensors have been relatively limited compared with increasing use of multi-temporal records in time series analyses. More seriously, sensor-related difference has not always considered applications. Accordingly, comparisons were conducted all available currently, including Multispectral Scanner (MSS), Thematic Mapper...

Both VIIRS and MODIS instruments use solar diffuser (SD) and lunar observations to calibrate their reflective solar bands (RSB). A solar diffuser stability monitor (SDSM) is used to track the SD on-orbit degradation. On-orbit observations have shown similar wavelength-dependent SD degradation (larger at shorter VIS wavelengths) and SDSM detector response degradation (larger at longer NIR wavele...

The 2WIDE SENSE (WIDE spectral band & WIDE dynamics multifunctional imaging SENSor Enabling safer car transportation) EU funded project is aimed at the development of a low-cost camera sensor for automotive applications able to acquire the full visible to Short Wave InfraRed (SWIR) spectrum, from 400 to 1700 nm. This paper presents the results obtained using this extended spectral responsivity ...