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Types of Global Positioning System Surveys

GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
Precipitation Gravimetry01:03

Precipitation Gravimetry

Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
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Energy of a Satellite in a Circular Orbit

Thousands of artificial satellites orbit the Earth every day at various distances from the Earth. Satellites that orbit the Earth below an altitude of 1,600 km are considered to be orbiting in low-Earth orbit (LEO). Research satellites and Earth observation satellites are usually placed in LEO, and mostly orbit the Earth in elliptical orbits. Navigation satellites are placed in medium-Earth orbit (MEO), ranging from 2,000 km to 36,000 km from the surface of the Earth. Meanwhile, communication...
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Data Collection by Observations

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Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

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Measurement of Aerosols Optical Thickness of the Atmosphere using the GLOBE Handheld Sun Photometer
06:27

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Published on: May 29, 2019

Observaciones terrestres desde satélites operativos de la NOAA.

H Yates, A Strong, D McGinnis

    Science (New York, N.Y.)
    |January 31, 1986
    PubMed
    Resumen

    Los satélites operativos de la Administración Nacional Oceánica y Atmosférica (NOAA) ofrecen datos vitales para la oceanografía, la hidrología y la agricultura. Estos satélites monitorean la temperatura de la superficie del mar, la cubierta de nieve y las precipitaciones, con aplicaciones en rápida expansión.

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    Área de la Ciencia:

    • Ciencias de la Tierra Ciencias de la Tierra Ciencias de la Tierra
    • Monitoreo del medio ambiente El monitoreo del medio ambiente.
    • La detección remota con sensores.

    Sus antecedentes:

    • Los satélites operativos de la Administración Nacional Oceánica y Atmosférica (NOAA) han permitido avances significativos.
    • Las aplicaciones en oceanografía, hidrología y agricultura se están expandiendo rápidamente.

    Objetivo del estudio:

    • Proporcionar una visión general del estado actual de las aplicaciones de datos derivados de satélites.
    • Para resaltar las áreas clave de monitoreo en los océanos, la hidrología y la agricultura.

    Principales métodos:

    • Utiliza datos de satélites operativos de la Administración Nacional Oceánica y Atmosférica (NOAA).
    • Se centra en las cantidades derivadas relevantes para la oceanografía, la hidrología y la agricultura.

    Principales resultados:

    • Se identificaron parámetros oceanográficos clave: temperatura de la superficie del mar, corrientes oceánicas y color del océano.
    • Fenómenos hidrológicos catalogados: cubierta de nieve, extensión de hielo fluvial y marino e inundación.
    • Variables agrícolas enumeradas: precipitación, temperaturas extremas, temperaturas del dosel, insolación y cubierta de nieve.

    Conclusiones:

    • Los satélites operativos de la NOAA son herramientas cruciales para el monitoreo de los sistemas terrestres.
    • El alcance de las aplicaciones de datos satelitales en ciencias ambientales y agricultura está creciendo continuamente.