نتایج جستجو برای: modis images

تعداد نتایج: 268828  

Journal: :IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2015

2015
Mingquan Wu Wenjiang Huang Zheng Niu Changyao Wang Yu-pin Lin

The limitations of satellite data acquisition mean that there is a lack of satellite data with high spatial and temporal resolutions for environmental process monitoring. In this study, we address this problem by applying the Enhanced Spatial and Temporal Adaptive Reflectance Fusion Model (ESTARFM) and the Spatial and Temporal Data Fusion Approach (STDFA) to combine Huanjing satellite charge co...

2009
Gerhard Meister Bryan A. Franz Ewa J. Kwiatkowska Robert E. Eplee Charles R. McClain

Scanning radiometers on earth-orbiting satellites are used to measure the chlorophyll content of the oceans via analysis of the water-leaving radiances. These radiances are very sensitive to the atmospheric correction process, which in turn is polarization dependent. The image created by a scanning radiometer is usually composed of successive scans by two mirror sides and one or several detecto...

2002
Peter F. Sturm

We consider dynamic scenes consisting of moving points whose motion is constrained to happen in one of a pencil of planes. This is for example the case when rigid objects move independently, but on a common ground plane (each point moves in one of a pencil of planes parallel to the ground plane). We consider stereo pairs of the dynamic scene, taken by a moving stereo system, that allow to obtai...

2010
Youngwook Kim Alfredo R. Huete Tomoaki Miura Zhangyan Jiang

Vegetation indices (VIs) are widely used in long-term measurement studies of vegetation changes, including seasonal vegetation activity and interannual vegetation-climate interactions. There is much interest in developing cross-sensor/multi-mission vegetation products that can be extended to future sensors while maintaining continuity with present and past sensors. In this study we investigated...

2014
Claudia Giardino Mariano Bresciani Ilaria Cazzaniga Karin Schenk Patrizia Rieger Federica Braga Erica Matta Vittorio E. Brando

In this study we evaluate the capabilities of three satellite sensors for assessing water composition and bottom depth in Lake Garda, Italy. A consistent physics-based processing chain was applied to Moderate Resolution Imaging Spectroradiometer (MODIS), Landsat-8 Operational Land Imager (OLI) and RapidEye. Images gathered on 10 June 2014 were corrected for the atmospheric effects with the 6SV ...

2005
D. L. VERBYLA

The Moderate Resolution Imaging Spectroradiometer (MODIS) Leaf Area Index (LAI) Product (MOD15A2) was evaluated for the growing seasons of 2000 through 2004 in Alaska. The LAI estimate may be affected by three factors not directly related to canopy leaf area: snow melt, cloud contamination and conifer forest versus broadleaf shrub canopy type. Increases in MODIS LAI values occurred during the s...

Journal: :JCP 2014
Shunyao Wu Fengjing Shao Ying Wang Rencheng Sun Jinlong Wang

In recent years, enteromorpha prolifera detection has received increasing attention. Supervised learning with remote sensing images can achieve satisfactory performances for green tide monitoring. However, data distributions between images obviously differ, and it would be too costly to label a massive amount of images for enteromorpha prolifera detection. Thus, this paper focuses on detecting ...

Journal: :Remote Sensing 2017
Tyson Carswell Maycira Costa Erika Young Nicholas Komick Jim Gower Ruston Sweeting

There is an increasing need for satellite-derived accurate chlorophyll-a concentration (chla) products to improve fisheries management in coastal regions. However, the methods used to derive these products have to be evaluated, so the associated uncertainties are known. The performance of three atmospheric correction methods, the near infrared (NIR), the shortwave infrared (SWIR), and the Manag...

Journal: :Remote Sensing 2017
Alessandra Campanelli Simone Pascucci Mattia Betti Federica Grilli Mauro Marini Stefano Pignatti Stefano Guicciardi

The performance of empirical band ratio models were evaluated for the estimation of Coloured Dissolved Organic Matter (CDOM) using MODIS ocean colour sensor images and data collected on the North-Central Western Adriatic Sea (Mediterranean Sea). Relationships between in situ measurements (2013–2016) of CDOM absorption coefficients at 355 nm (aCDOM355) with several MODIS satellite band ratios we...

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