46
Station Performance / Re: Monthly 'Cloud Fraction' over ILRS SLR locations
« on: July 18, 2016, 11:52:47 AM »
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47
Station Performance / Monthly 'Cloud Fraction' over ILRS SLR locations
« on: July 18, 2016, 11:50:13 AM »
Hi
We made a small investigation in to the 'Cloud Fraction', as measured by the MODIS (Moderate Resolution Imaging Spectroradiometer,http://modis.gsfc.nasa.gov/) instruments, the first launched on 18th December 1999 onboard the Terra Platform satellite and the second on 4th May 2002 onboard the Aqua platform satellite , at ILRS sites.
The data is made available to download, see here http://modis-atmos.gsfc.nasa.gov/MOD06_L2/index.html. And here http://modis-atmos.gsfc.nasa.gov/MOD08_M3/index.html
The attached plots are grouped in geographical regions, showing 'Cloud Fraction' as recorded at SLR site locations. We used the 1x1 degree grids and interpolated to the SLR latitude/longitude coordinates to get 'Cloud Fraction' values for each month from 2013. A value of 1.0 means complete cloud cover over that month and 0.0 indicates clear skies. An average value for each SLR station is also included in the legend.
These plots do not take account for station height, which may overcome any SLR cloud problems.
More plots in second post...
Matt
We made a small investigation in to the 'Cloud Fraction', as measured by the MODIS (Moderate Resolution Imaging Spectroradiometer,http://modis.gsfc.nasa.gov/) instruments, the first launched on 18th December 1999 onboard the Terra Platform satellite and the second on 4th May 2002 onboard the Aqua platform satellite , at ILRS sites.
The data is made available to download, see here http://modis-atmos.gsfc.nasa.gov/MOD06_L2/index.html. And here http://modis-atmos.gsfc.nasa.gov/MOD08_M3/index.html
The attached plots are grouped in geographical regions, showing 'Cloud Fraction' as recorded at SLR site locations. We used the 1x1 degree grids and interpolated to the SLR latitude/longitude coordinates to get 'Cloud Fraction' values for each month from 2013. A value of 1.0 means complete cloud cover over that month and 0.0 indicates clear skies. An average value for each SLR station is also included in the legend.
These plots do not take account for station height, which may overcome any SLR cloud problems.
More plots in second post...
Matt
48
Welcome to the ILRS NESC Forum / Re: NESC Forum - Please read on joining the forum
« on: June 27, 2016, 12:05:05 PM »
Hi
There are a small number of member registrations that do not appear to be from authentic users.
I have taken extra steps in the registration process to make it harder for SPAM machines to register. I will remove these members and I apologise if I remove your account by mistake.
Please do not to be anonymous when using these boards and please include something in your personal details (username, location, photo, personal text etc.) that marks you out as a genuine user.
Matt
There are a small number of member registrations that do not appear to be from authentic users.
I have taken extra steps in the registration process to make it harder for SPAM machines to register. I will remove these members and I apologise if I remove your account by mistake.
Please do not to be anonymous when using these boards and please include something in your personal details (username, location, photo, personal text etc.) that marks you out as a genuine user.
Matt
49
Welcome to the ILRS NESC Forum / Re: NESC Forum - Please read on joining the forum
« on: May 09, 2016, 03:12:29 PM »
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Matt
You can choose to be notified instantly, daily or weekly by email. You must select which topics or boards you wish to receive notifications for by clicking "NOTIFY" on the relevant page.
It is also possible to "Turn notification on when you post or reply to a topic."
Matt
50
Welcome to the ILRS NESC Forum / NESC Forum - Please read on joining the forum
« on: May 04, 2016, 04:52:04 PM »
Hi
I hope you find the NESC Forum useful and I encourage you to be an active member. You are welcome to start topics on any of the available boards.
Please try not to be anonymous on this forum. You can make yourself identifiable by your username, avatar and location.
Please report any posts that are inappropriate.
Please send me any feedback or suggestions for additional discussion boards.
And please recommend this forum to your colleagues.
Enjoy!
Matt
I hope you find the NESC Forum useful and I encourage you to be an active member. You are welcome to start topics on any of the available boards.
Please try not to be anonymous on this forum. You can make yourself identifiable by your username, avatar and location.
Please report any posts that are inappropriate.
Please send me any feedback or suggestions for additional discussion boards.
And please recommend this forum to your colleagues.
Enjoy!
Matt