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Snapshots

  1. Hardigg Case

    Snapshot Title: Hardigg Case
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    One of several Hardigg cases we use to transport instruments and tools; this and others have been on dozens of such expeditions. Strong, waterproof rotomolded polyethylene, and made in western Massach...



  2. Solar Panel

    Snapshot Title: Solar Panel
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    The AWS is powered by sealed lead acid batteries, charged by solar panels. Three independent systems utilize 5, 20, and 50 watts of panels, respectively. Most of this is required for the fans which as...



  3. Temperature & Humidity #3

    Snapshot Title: Temperature & Humidity #3
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    A cluttered view of a Met One radiation shield (the white disk and tube), compatible with that used by the US CRN (Climate Reference Network); well tested and well proven. Inside are 3 PRT air temp pr...



  4. Temperature & Humidity #1

    Snapshot Title: Temperature & Humidity #1
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    This is a Gill 16-plate radiation shield, housing a Rotronic MP101A sensor which measures air temperature and relative humidity. Unlike the station's other radiation shields, this one is naturally ven...



  5. Pyrgeometer

    Snapshot Title: Pyrgeometer
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    This Eppley model PIR pyrgeometer has seen service on several automated weather stations, from 83°N to 6,500 m elevation. It measures incoming longwave radiation. The new CNR4 will permit an intercom...



  6. Pyrgeometer

    Snapshot Title: Pyrgeometer
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    This downward-looking pyrgeometer measures longwave radiation emitted from the glacier surface. It is a Kipp & Zonen model CG1 surrounded by a custom-made shield to shade the instrument body.



  7. Sonic Ranging Sensor

    Snapshot Title: Sonic Ranging Sensor
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    This cylinder measures the time required for a ping to travel from a transducer to the snow/ice surface and back again. Distance is then calculated after correcting for the air path temperature (which...



  8. Wind Sensor

    Snapshot Title: Wind Sensor
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    This is RM Young's model 05103, widely used on automated weather stations. This sensor was made as a prototype for the "Alpine" model, using a black plastic with an ice-resistant coating. It has been ...



  9. What are these?

    Snapshot Title: What are these?
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    We are frequently asked about these gizmos atop each vertical member of the station. No, they are not ornamental. Their purpose is rather to dissipate any static electrical charges which develop, espe...



  10. Net Radiometer

    Snapshot Title: Net Radiometer
    Taken by: Doug Hardy

    Image: Quelccaya Ice Cap weather station, Perú
    Image Owner: Doug Hardy



    Description:

    This Kipp & Zonen CNR4 was added in May 2010 to measure incoming and reflected solar radiation as well as incoming and outgoing longwave. These measurements compliment those of individual sensors ...