satellite water monitoring Articles

  • Basics of satellite antenna positioning for environmental monitoring

    Users of geostationary satellite based telemetry systems have one unique challenge that other types of telemetry users do not – that is, calculating the angles needed to point their transmitting antennas to orbiting satellite. The process is actually fairly straightforward, although there are some common pitfalls that can be avoided with a little pre-planning. First, we need to look at how the ...

  • Managing the Earth from Space: Satellite and sensing technology in water management

    Approximately 200 miles above the Earth’s surface, two satellites circle the planet, always between 106 and 193 miles apart. But while these twins—called Gravity Recovery and Climate Experiment (GRACE)—live in space, they’re providing invaluable assistance in managing natural resources on the ground. GRACE has created a unique picture of ...

  • Map Algal Blooms with Satellite Remote Sensing Technology

    The quality of water bodies is a key determinant in the usability of the resource for the purpose required. It is therefore of great importance to managers of hydrologic resources to be able to confidently tell the status of their water resource. One of the major problems in the quality of surface water bodies is the blooming of algae and blue green algae. Algal blooms can result in ecological, ...


    By LG Sonic

  • Data assimilation for crop yield and CO2 fixation monitoring in Asia by a photosynthetic sterility model using satellites and meteorological data

    This study assimilates satellite and meteorological data to monitor grain yields and CO2 fixation by developing a photosynthetic-sterility model that integrates the Asian scale of meteorological data such as solar radiation, air temperature effects on photosynthesis and the Normalised Difference Vegetation Index (NDVI) with a Satellite Pour l'Observation de la Terre (SPOT) VEGETATION sensor. ...


    By Inderscience Publishers

  • Satellite analysis to identify changes and drivers of CyanoHABs dynamics in Lake Taihu

    A long-term satellite-based analysis was performed to assess the impact of environmental factors on cyanobacterial harmful blooms (CyanoHABs) dynamics in a typical shallow lake, Lake Taihu. A sub-pixel approach (algae pixel-growing algorithm) was used with 13 years of MOderate-resolution Imaging Spectroradiometer (MODIS) data to evaluate changes in bloom extension, initiation date, duration, ...


    By IWA Publishing

  • Scottish Water Flow Monitoring Contracts

    Scottish Water commissioned HL in 2007 to deliver two separate flow monitoring contracts to help improve the water companies understanding of the yield and low flow conditions at several water supply catchments across Scotland. One project involved the installation of reservoir level, inflow flow gauges and recording raingauge devices in nine reservoir catchments in South West Scotland. Although ...

  • Calibration of a capacitance soil sensor is required to achieve the level of accuracy required for satellite ground truthing

    Why not make it easy with a non-capacitance based soil sensor like the HydraProbe? This study published in American Meteorological Society's BAMS journal demonstrates the extent of variability in readings one can expect with a soil moisture sensor based on capacitance technology.  To ...

  • HydraProbe Field Portable Used to Validate the Soil Moisture Active Passive Satellite Data in Manitoba

    The calibration and validation of remotely sensed soil moisture products relies upon an accurate source of ground truth data. The primary method of providing this ground truth is to conduct intensive field campaigns with manual surface soil moisture sampling measurements, which utilize gravimetric sampling, soil moisture probes, or both, to estimate the volumetric soil water content. Soil ...

  • Multitemporal monitoring of water resources degradation at Al-Azraq Oasis, Jordan, using Remote Sensing and GIS techniques

    The historical topographic maps and satellite images of Al-Azraq Oasis of Jordan were collected from 1953 to 2005. These images are demonstrated for the first time. The satellite land image for 2005 is considered to be the most significant one. This is considered to be the highest level of degradation since 1953. The water degradation in the lake was fitted by linear regression and the best ...


    By Inderscience Publishers

  • Monitoring Environmental Quality

    ' In order to determine the effectiveness of actions to improve environmental quality it is necessary to be able to measure relevant environmental parameters at a level of detail which is accurate enough to distinguish the anticipated changes. However, the establishment and maintenance of monitoring systems is time-consuming and expensive and therefore the scale of such systems needs to be kept ...


    By The World Bank

  • Environmental Monitoring: Guide to Selecting Wireless Communication Solutions

    Rapidly growing demands for information and increased productivity in the environmental monitoring field have been met with a whirlwind of wireless communication options that can be integrated into data collection systems, with cellular, radio and satellite telemetry solutions leading the way. With so many options available, it is important to understand the features, advantages and limitations ...

  • Off Shore Oil Sheen Detection and Thickness Monitoring

    This technical note discusses some of the key offshore applications for oil-on-water monitoring and thickness detection. Leakwise systems have over 18 years of experience supplying reliable monitoring to major petroleum and power companies in offshore and onshore applications. Designed for Marine Applications The Leakwise ID-227 wired and ID-227WL wireless systems ...


    By GE Analytical Instruments

  • Application of dynamic threshold in sea and lake ice mapping and monitoring

    Ice detection and monitoring algorithms using visible and infrared images are generally founded on thresholds-based approaches. Classification of features over ice covered sea requires a series of reliable thresholds. The change in surface conditions throughout the season affects these thresholds and makes their adjustment necessary. This study proposes an operational method based on a set of ...


    By Inderscience Publishers

  • Unmanned remote and wireless CDM monitoring case study

    Remote and wireless monitoring technology to meet CDM requirements is in its infancy in Europe. Carbon trading is driving it globally, especially in North and South America. That experience and technology is now finding a demand in Europe and Asia in landfill, biogas from food and animal waste in digesters and water treatment sludge digestion. Methane recovery from landfill and anaerobic ...


    By Geotech

  • Copernicus: new horizons for European and global land monitoring

    How can we monitor Europe-wide farmland biodiversity so that it makes sense to farmers, is ecologically credible and still is affordable? Two new studies published in the Journal of Applied Ecology and the Journal of Environmental Management think it is possible. These studies were conducted by international groups of scientists including Alterra. Combining stakeholder priorities for biodiversity ...

  • Assessing and monitoring agroenvironmental determinants of recreational freshwater quality using remote sensing

    Diverse fecal and nonfecal bacterial contamination and nutrient sources (e.g. agriculture, human activities and wildlife) represent a considerable non-point source load entering natural recreational waters which may adversely affect water quality. Monitoring of natural recreational water microbial quality is most often based mainly on testing a set of microbiological indicators. The cost and ...


    By IWA Publishing

  • Scottish Water case study

    Scottish Water, 2007 ongoing Improving reservoir yield assessments and compensation flow monitoring Scottish Water commissioned HL in 2007 to deliver two separate flow monitoring contracts to help improve the water companies understanding of the yield and low flow conditions at several water supply catchments across Scotland. One project involved the ...


    By Hydro-Logic Services

  • Salinity monitoring in western Australia using remotely sensed and other spatial data

    Received for publication January 27, 2009. The southwest of Western Australia is affected by dryland salinity that results in the loss of previously productive agricultural land, damage to buildings, roads, and other infrastructure, decline in pockets of remnant vegetation and biodiversity, and reduction in water quality. Accurate information on the location and rate of change of the extent of ...

  • Advanced Water Quality Techniques Course

    Abstract:The development of a strategic water quality monitoring program is based on prioritizing risks to public safety and economic reality. The development of global standardized methods and protocols for automated water quality monitoring would facilitate international communication of water quality information and comparison of standardized methods and protocols. The three primary methods ...


  • Yield Assessment, Scottish Water case study

    Scottish Water, 2007 ongoing Improving reservoir yield assessments and compensation flow monitoring Scottish Water commissioned HL in 2007 to deliver two separate flow monitoring contracts to help improve the water companies understanding of the yield and low flow conditions at several water supply catchments across Scotland. One project involved the ...


    By Hydro-Logic Services

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