Filters: Tags: Sensors (X)
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Categories: Publication;
Types: Citation;
Tags: Aerial photography,
Antarctic,
Antarctic, East Antarctic,
Classification,
Cluster maps,
Current, accurate, and reliable information on the areal extent and spatial distribution of mangrove forests in the Philippines is limited. Previous estimates of mangrove extent do not illustrate the spatial distribution for the entire country. This study, part of a global assessment of mangrove dynamics, mapped the spatial distribution and areal extent of the Philippines’ mangroves circa 2000. We used publicly available Landsat data acquired primarily from the Global Land Survey to map the total extent and spatial distribution. ISODATA clustering, an unsupervised classification technique, was applied to 61 Landsat images. Statistical analysis indicates the total area of mangrove forest cover was approximately 256,185...
Categories: Publication;
Types: Citation;
Tags: Biomass,
Fires,
Optical analysis,
P0000 AIR POLLUTION,
Pollution Abstracts,
Categories: Publication;
Types: Citation;
Tags: Actuators,
Automation,
Control memory technology,
Control systems,
Demand-side management,
Categories: Publication;
Types: Citation;
Tags: Algorithms,
Automobile manufacture,
Boiler houses,
Chart recorders,
Compressed air,
Categories: Publication;
Types: Citation;
Tags: Atmospheric humidity,
Ceilings,
Control systems,
Cooling,
Dehumidification control,
Categories: Publication;
Types: Citation;
Tags: Aquifers,
EE 444.2 Groundwater; EE 631.1 Fluid Flow (General); EE 943.,
Environmental Engineering Abstracts,
Field test,
Flow measurement,
Mangrove forests of Madagascar are declining, albeit at a much slower rate than the global average. The forests are declining due to conversion to other land uses and forest degradation. However, accurate and reliable information on their present distribution and their rates, causes, and consequences of change have not been available. Earlier studies used remotely sensed data to map and, in some cases, to monitor mangrove forests at a local scale. Nonetheless, a comprehensive national assessment and synthesis was lacking. We interpreted time-series satellite data of 1975, 1990, 2000, and 2005 using a hybrid supervised and unsupervised classification approach. Landsat data were geometrically corrected to an accuracy...
The grassland ecosystem in the Northern-Tibet Plateau (NTP) of China is very sensitive to weather and climate conditions of the region. In this study, we investigate the spatial and temporal variations of the grassland ecosystem in the NTP using the NOAA/AVHRR ten-day maximum NDVI composite data of 1981-2001. The relationships among Vegetation Peak-Normalized Difference Vegetation Index (VP-NDVI) and climate variables were quantified for six counties within the NTP. The notable and uneven alterations of the grassland in response to variation of climate and human impact in the NTP were revealed. Over the last two decades of the 20th century, the maximum greenness of the grassland has exhibited high increase, slight...
Categories: Publication;
Types: Citation;
Tags: Aerodynamics,
Airships,
Atmospheric dynamics,
Boundary layer flow,
Computer aided software engineering,
Categories: Publication;
Types: Citation;
Tags: Aerosols,
Air sampling,
Atmospheric pollution monitoring,
Emission measurements,
Monitoring systems,
Categories: Publication;
Types: Citation;
Tags: ASFA 1: Biological Sciences & Living Resources,
Bacterial counters,
Methodology,
Population characteristics,
Population dynamics,
Categories: Publication;
Types: Citation;
Tags: Medical and Pharmaceutical Biotechnology Abstracts,
W3 33250 Others,
biotechnology,
chirality,
fluorescence,
Categories: Publication;
Types: Citation;
Tags: Actuators,
Algorithms,
Automation,
Climate change,
Climate control,
Categories: Publication;
Types: Citation;
Tags: Biocompatibility,
Bioelectric potentials,
Bioengineering Abstracts,
Biotechnology,
Cells,
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