Posted on April 7th, 2020

30-cm Color WorldView-3/4 Image of the Month – Mallows Bay Park

Every time we look at WorldView-3 and WorldView-4 (WV3/4) imagery, we are blown away. And we hope you are equally impressed with the data! Last month we checked out one of the most visited locations in Europe, and for the April 30-cm Color WorldView-3/4 Image of the Month we head to the states with a look at an eerie graveyard for old wooden ships, Mallows Bay Park in Maryland.

PLEASE NOTE: Effective May 2016, WorldView-3/4 prices dropped again! Are you interested in finding out more about these price drops? If so, send us an email at [email protected].


Declared a National Marine Sanctuary in 2019, Mallows Bay Park is located along the Potomac River in Maryland where over 100 World War I ships were burnt and then sank in the shallow waters. Many of these ship skeletons have sunk back into the river and the majority of those that remain exposed above the waterline are covered with bushes and trees. These 30-cm WorldView-3 images were collected on October 19, 2019 and have been enhanced by Apollo Mapping for improved colors and clarity. (Images Courtesy: Maxar)

WorldView-3 launched in late 2014 and WorldView-4 launched in late 2016; taken together they are the most advanced satellite constellation the commercial marketplace has ever had access to. Here are a few of the features that really set these satellites apart from the competition:

  • Improved Resolution
    • Higher resolution means you can see more detail in WV3/4 imagery.
    • Data collected at nadir will have 31-centimeter (cm) panchromatic, 1.24-meter (m) visible and near infrared, 3.7-m SWIR (WV3 only) and 30-m CAVIS (WV3 only) bands.
    • At 20 degrees off-nadir, the resolution is 34-cm panchromatic, 1.38-m visible and near infrared and 4.1-m shortwave infrared.
  • Additional Spectral Bands
    • If spectral analysis is part of your project, then no other satellite can match WV3 with its: 8 bands of visible and near-infrared data; and 8 shortwave infrared bands which are crucial for geological studies.
  • Better Positional Accuracy
    • With accuracies of 3.5-m CE90% or better (without ground control even!), WV3/4 has no rivals for its enhanced positional accuracy.
  • Daily Revisits
    • At 40 degrees latitude, WV3 is able to image every location daily with 1-meter or better resolution and then every 4.5 days at 34-cm resolution or better.
    • WV4 is no longer collecting new imagery.
  • Increased Collection Capacity
    • WV3/4 feature 13.1-km swath widths (at nadir) with the ability to collect up to 680,000 square kilometer (sq km) of high-resolution data per day per satellite (though WV4 is dead now).
    • Improved control movement gyros translate into larger maximum contiguous collection areas per pass, with up to ~7,500 sq km of mono imagery and ~3,000 sq km of stereo possible.

If you are interested in WorldView-3 and/or WorldView-4 imagery for your next project, please let us know by phone, 303-993-3863, or by email, [email protected].

You can also find more WV3 samples and technical information on our website here and then WV4 samples and information can be found here.

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