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The Gateway to Astronaut Photography of Earth

(NASA Crew Earth Observations)

"We catch a glimpse of a huge swirl of clouds out the window over the middle of the Pacific Ocean, or the boot of Italy jutting down into the Mediterranean, or the brilliant blue coral reefs of the Caribbean strutting their beauty before the stars. And...we experienced those uniquely human qualities: awe, curiosity, wonder, joy, amazement." (Russell L. Schweickart, Apollo Astronaut ("The Home Planet")

Photographing the Earth from the International Space Station

Astronaut Photography - Observing Earth's Systems from Space

by Rebecca Dodge in collaboration with NASA scientists

El Nino

El Nino19 itself is being studied as part of the Crew Earth Observations program, with respect to both increased and deficit precipitation anomalies that can accompany El Nino events. El Nino promotes landslides, flooding, and extraordinary vegetation growth when local rainfall increases. Flooding can provide growth conditions favorable to increased disease-bearing mosquito populations21. Excessive vegetation growth can support temporary population explosions in other disease-bearing organisms22. Locally rainfall deficits create drought conditions that can expose lake bottoms as water levels fall, providing sources for dust storms. Droughts also increase famine and fire danger.

21. ( Study Links El Nino to Deadly South American Disease)

22. ( Hanta Virus Risk Maps)

San Mateo Foreword >>
Introduction >>
Crew Earth Observations >>
          Dynamic Events >>
          Coral Reefs >>
          El Nino >>
          Smog >>
          Volcanic Eruptions >>
          Deltas >>
Urban Areas >>
          Glaciers >>
References >>