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  2. Ground-level ozone - Wikipedia

    en.wikipedia.org/wiki/Ground-level_ozone

    Ozonesondes are a form of in situ, or local ozone measuring instruments. An ozonesonde is attached to a meteorological balloon, so that the instrument can directly measure ozone concentration at the varying altitudes along the balloon's upward path.

  3. Radiosonde - Wikipedia

    en.wikipedia.org/wiki/Radiosonde

    Radiosondes measuring ozone concentration are known as ozonesondes. [1] Radiosondes may operate at a radio frequency of 403 MHz or 1680 MHz. A radiosonde whose position is tracked as it ascends to give wind speed and direction information is called a rawinsonde ("radar wind -sonde").

  4. In situ - Wikipedia

    en.wikipedia.org/wiki/In_situ

    In situ [a] is a Latin phrase meaning "in place" or "on site", derived from in ('in') and situ (ablative of situs, lit. ' place '). [3] The term refers to the examination of phenomena or objects within their original place or context. This methodological approach, used across diverse disciplines, maintains contextual integrity essential for ...

  5. How California eco-bureaucrats halted a Pacific Palisades ...

    www.aol.com/news/california-eco-bureaucrats...

    Most notably, the county-run Santa Ynez Reservoir — which is right in the heart of Pacific Palisades, and can hold 117 million gallons — was empty when the fires broke out last week, and has ...

  6. Earth observation - Wikipedia

    en.wikipedia.org/wiki/Earth_observation

    Earth observation (EO) is the gathering of information about the physical, chemical, and biological systems of the planet Earth. [1] It can be performed via remote-sensing technologies (Earth observation satellites) or through direct-contact sensors in ground-based or airborne platforms (such as weather stations and weather balloons, for example).

  7. Southern states declare emergencies ahead of potentially ...

    www.aol.com/coldest-wind-chills-years-threaten...

    More than 220 million people across the United States are facing dangerous cold that will also open the door for a potentially historic and crippling winter storm that could deliver snow as far ...

  8. AOL Mail - AOL Help

    help.aol.com/products/aol-webmail

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  9. At least 7 dead, 19 injured after Philadelphia plane crash ...

    www.aol.com/awful-aviation-disaster-feds-probe...

    Destroyed cars line Cottman Avenue as authorities work at the scene of a Learjet crash in Northeast Philadelphia that occurred the evening before, Saturday, Feb. 1, 2025.