MSGID: 1:317/3 6435a047   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
   April 11, 2023 - Rain fills Murchinson and Gascoyne Rivers   
      
      [image04112023_main.jpg] [image04112023_rollover.jpg]   
      
      April 6, 2023 March 27, 2023   
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      Acquired on April 6 and March 27, 2023, by the Moderate Resolution   
      Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, these two   
      false-color images show rapid changes in water level on the Gascoyne   
      and Murchison Rivers in Western Australia. Simply clicking on the date   
      below the image reveals that both the Gascoyne (north) and the   
      Murchison (south) Rivers were nearly completely dry on March 27. Only   
      10 days later, on April 6, the rivers were not only visible, but   
      appeared to be flooded.   
      
      The Gascoyne and Murchison Rivers are both ephemeral waterways, which   
      contain water only part of the year. They tend to hold water near the   
      end of the rainy season (April) or after heavy rains drench central   
      West Australia, where the rivers or located or their extended basins.   
      Rainstorms have impacted north and central Western Australia recently,   
      especially in late March through early April.   
      
      This type of false-color image helps separate water (blue) from open   
      land (tan, brown, or pink tints) and vegetation (green). In the earlier   
      image (March 27), it is easier to see the course of water in ephemeral   
      rivers by the streaks of green that mark vegetation growing wherever   
      water exists rather than blue of the water. This is because water   
      volume is extremely scant, but enough to support growth of tenacious   
      plants.   
      
      Image Facts   
      Satellite:  Terra   
      Date Acquired: 4/6/2023   
      Resolutions:  1km (165.9 KB),  500m (462.3 KB),  250m (964 KB)   
      Bands Used: 7,2,1   
      Image Credit: MODIS Land Rapid Response Team, NASA GSFC   
      
      
      
   https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2023-04-11   
       
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