Products
Version 1.0 of the aerosol climatology is to contain the following categorised products:
Directly Measured Products
| Product | Instrument | Time Contribution | Available
|
|---|
| Extinction (0.385 um) | SAGE II | 1984 - 2001 | Yes
| | Extinction (0.385 um) | SAGE III | 2002 - 2003 | Yes
| | Extinction (0.448 um) | SAGE III | 2002 - 2003 | Yes
| | Extinction (0.450 um) | SAGE I | 1979 - 1981 | Yes
| | Extinction (0.453 um) | SAGE II | 1984 - 2001 | Yes
| | Extinction (0.521 um) | SAGE III | 2002 - 2003 | Yes
| | Extinction (0.525 um) | SAGE II | 1984 - 2001 | Yes
| | Extinction (0.596 um) | SAGE III | 2002 - 2003 | Yes
| | Extinction (0.676 um) | SAGE III | 2002 - 2003 | Yes
| | Extinction (0.754 um) | SAGE III | 2002 - 2003 | Yes
| | Extinction (0.868 um) | SAGE III | 2002 - 2003 | Yes
| | Extinction (1.000 um) | SAGE I | 1979 - 1981 | Yes
| | Extinction (1.000 um) | SAM II | 1978 - 1993 | Yes
| | Extinction (1.019 um) | SAGE II | 1984 - 2001 | Yes
| | Extinction (1.019 um) | SAGE III | 2002 - 2003 | Yes
| | Extinction (1.060 um) | POAM II | 1993 - 1996 | Yes
| | Extinction (1.550 um) | SAGE III | 2002 - 2003 | Yes
| | Extinction (4.510 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (5.280 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (6.230 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (6.760 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (7.430 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (7.810 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (8.090 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (10.00 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (11.40 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (12.10 um) | ISAMS | 1991 - 1992 | Yes
| | Extinction (16.30 um) | ISAMS | 1991 - 1992 | Yes
| | Water Vapour | SAGE II | 1984 - 2001 | Yes
| | Temperature | SAGE II | 1984 - 2001 | Yes
| | Errors for all the above | - | - | Yes
|
Derived Products
| Product | Instrument | Time Contribution | Available
|
|---|
| Particle Number Density | SAGE II | 1984 - 2001 | Yes
| | Mode Radius | SAGE II | 1984 - 2001 | Yes
| | Log Normal Spread | SAGE II | 1984 - 2001 | Yes
| | Effective Radius | SAGE II | 1984 - 2001 | Yes
| | Surface Area Density | SAGE II | 1984 - 2001 | Yes
| | Volume Density | SAGE II | 1984 - 2001 | Yes
| | Composition* | SAGE II | 1984 - 2001 | Yes
| | Errors for all the above** | - | - | Yes
|
* The composition value provides the weight fraction of H2SO4. A
negative value indicates there is an additional presence of ammonium
sulphate.
** The standard error on the mean as a percentage of the mean is
used. Ie. for a grid box containing 
data points:
where:
 = the mean value of the
data in the grid box.
 = the standard
deviation of the data in the grid box.
 = the reported
error.
Data will be processed to remove any presence of cirrus or polar stratospheric cloud.
Steven Marsh
Last modified: Tue May 4 17:20:02 BST 2004
| 
