-------- Original Message --------
Subject:        Various current satelite layers on remote sensing
Date:   Thu, 25 Feb 2010 02:50:31 -0800 (PST)
From:   MARZIO VENEMAN <[log in to unmask]>
To:     Angie Cope <[log in to unmask]>



Dear subscribers Maps-Listserv.,

With reference to the above, I take pleasure informing you as follows.
Please note that the Earth Observatory has various social internet
connections, e.g. RSS, Ezine and on all network platforms as mentioned
with this email sign-off.

http://earthobservatory.nasa.gov/IOTD/view.php?id=42805&src=fb
<http://earthobservatory.nasa.gov/IOTD/view.php?id=42805&src=fb>



On February 24, 2000, after two months of post-launch testing, sensors
on NASA’s Terra satellite began opening their shutters and making their
first observations.



Stunning pictures are only part of Terra’s story, however. The small
globes show just a few of the Earth’s “vital signs” that Terra’s five
sensors monitor. In all five globes, gray indicates no data.

    * *Biosphere.* MODIS tracks photosynthesis by measuring growing
      vegetation on land and chlorophyll from phytoplankton in the
      ocean. Dark green on land (June 2009) and light colors in the
      ocean (March 2009) show the most productive areas.
    * *Carbon Monoxide.* Released by burning plants and fossil fuels,
      long-lived carbon monoxide (CO) is commonly used to trace the path
      of pollution as it spread from its source. The Measurements of
      Pollution in the Troposphere (MOPITT)
      <http://www.atmosp.physics.utoronto.ca/MOPITT/home.html> sensor
      collected these measurements in June 2009. The highest
      concentrations of carbon monoxide are dark orange.
    * *Aerosols.* Particles like pollution or dust—aerosols—affect both
      air quality and climate. Between March and May 2007, the
      Multi-angle Imaging Spectroradiometer (MISR)
      <http://www-misr.jpl.nasa.gov/> measured high aerosol
      concentrations (purple) from Saharan dust over the Atlantic Ocean
      and smoke and pollution over the Americas.
    * *Elevation.* With its stereo imagers, the Advanced Spaceborne
      Thermal Emission and Reflection Radiometer (ASTER),
      <http://asterweb.jpl.nasa.gov/> can take an image of the same
      ground area from two different angles. This stereo view allowed
      scientists to generate the most extensive satellite-based
      topographic model of the Earth to date.
    * *Net Radiation. *The balance between solar energy entering and
      thermal (heat) energy leaving Earth is the net radiation. This
      balance determines our planet’s average temperature. These
      observations from the Clouds and the Earth’s Radiant Energy System
      (CERES) <http://science.larc.nasa.gov/ceres/index.html> sensor
      show net radiation in March 2009. Orange shows energy surpluses
      (more energy in than out), while green shows energy deficits (more
      going out than coming in).

I trust this information is sufficient for your purposes, in case you
require any additional details, please do not hesitate to contact the
undersigned.

Yours sincerely,
Cordiali Saluti


Marzio Veneman
The Netherlands





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