Illustration of a laptop inside of a building with a window. outside the window is a data buoy transmitting data to the cloud which is then visible on the computer.

    2.6 Cloud Datacenter

    Cloud datacenters, also known as web-based or online datacenters, play a pivotal role in managing the data delivered by modern environmental data collection systems. They provide a secure, centralized platform for storing, processing, and analyzing collected data via the Internet, thereby enhancing the accessibility, scalability, and functionality of environmental monitoring programs. Cloud datacenters typically offer […]

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    Illustration of a buoy and land based NexSens system in a wetlands. Both systems are equipped with solar panels.

    2.5 Power and Solar Charging

    With remote monitoring also comes the need for an autonomous, efficient power supply to ensure the continuous operation of sensors, data loggers, and telemetry equipment. Systems installed at or near existing infrastructure can receive power from the electrical grid.  However, fixed power supplies are not available in many applications, so alternative means are required. In […]

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    Illustration of a buoy-based radio telemetry system deployed near a beach

    2.4 Telemetry

    Telemetry refers to the automatic measurement and wireless transmission of data from remote sensors to centralized data collection and management systems. Such technology is crucial for environmental monitoring, particularly in remote locations where real-time data is essential to meet regulatory requirements or to provide quick notice of environmental conditions. Telemetry systems can use various communication […]

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    Illustration of an internal logger device (PME miniDOT) connected to a laptop and a telemetric logger (NexSens X3 data logger) connected remotely. The internal device is to the left of the laptop and the telemetric logger is on the right.

    2.3 Data Loggers

    Data logger is a broad term that may refer to any device that stores sensor measurement data. Many smart sensors integrate on-board data logging electronics. However, for the purposes of environmental data logging, systems typically include dedicated data logger units that can interface with multiple sensor types and, in many cases, transmit the data. Data […]

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    Illustration of a groundwater sensing instrument in a corn field

    2.2 Smart Sensors

    Smart sensors are advanced measurement devices equipped with integrated processing capabilities and other features that enhance their functionality and reliability. While traditional sensors simply convert physical phenomena into electrical signals that can be recorded and processed, smart sensors can preprocess the data to provide instantaneous results. In addition, they frequently include advanced features such as […]

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    2.1 Introduction to Data Collection

    Environmental data collection is fundamental to scientific research, environmental management, and regulatory compliance. The systematic gathering of information about natural systems helps scientists, engineers, and policymakers make informed decisions to protect ecosystems, manage resources, and understand environmental changes.  Data collection can range from simple, manual measurements to complex, automated systems that continuously monitor various environmental […]

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    1.1 Historical Context and Modern Innovations in Environmental Monitoring

    This handbook provides a comprehensive guide to modern techniques in measuring the natural environment, including water quality, hydrology, weather, and soil. It focuses on environmental monitoring and data collection, including sensors, remote data acquisition systems, and cloud-based data management. Its aim is to be a practical resource for environmental professionals, researchers, and students to quickly locate […]

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    3.7 Chlorophyll and Blue-Green Algae

    Chlorophyll is a pigment found in plant cells and some microorganisms, such as algae and cyanobacteria. It gives these organisms their characteristic green color by reflecting the green wavelengths found in sunlight and plays a central role in the process of photosynthesis. There are several different chlorophyll molecule variants that exist. Chlorophyll-a is present in […]

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    3.6 ORP

    Oxidation-Reduction Potential (ORP), also known as Redox Potential, is a measure of water’s ability to facilitate chemical processes that either oxidize or reduce substances within it. It indicates the presence and activity of agents that can accept or donate electrons. ORP is measured in terms of electric potential with standard units of millivolts (mV). Readings […]

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    3.5 pH

    pH has a complex role in water chemistry as it influences the solubility, reactivity, and potential toxicity of a wide range of elements commonly found in water.

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