Solar Flares as seen by SMOS Dear SMOSers Raúl Díez-García from the SMOS Calibration Expertise Centre at ESAC (Spain) tells us that last Wednesday (September 6th 2017) SMOS was able to observe the monster X9-class solar flare. Se below the Sun's brightness temperatures of this event. At the maximum, it almost reaches 21 million Kelvin which is kind of hot!. He provided the following charts: SMOS...

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SMOS and Harvey As most of you are well aware the Hurricane Harvey Texas very recently showing that maybe climate change is not a joke. <-- Harvey (Image: NASA) Harvey's  forecasted trajectory (National Hurricane Center, National Oceanic And Atmospheric Administration) ^ SMOS monitored wind speed while Harvey was travelling in the Gulf of Mexico and then...

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Alexander Löw Dear Colleagues I regret to have to tell you a very sad piece of information. One of our colleagues, Alex Löw tragically died in a car accident last week end. He had been with us since the inception of the Cal Val activities for SMOS and has always been very supportive of the passive microwave soil moisture approach. More important he was a very good scientist and...

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New salinity products are available at CATDS! Dear CATDS user, New salinity products are available at CATDS. A new correction for systematic errors (land-sea and seasonal-latitudinal ) has been implemented in CATDS CPDC and in CATDS CEC LOCEAN. Concerning CATDS CPDC, a RE05 reprocessing of ocean salinity is available from January 2010 to March 2017; the operational processing...

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NEW SMOS L4 products available on CATDS Dear SMOS DATA USER We have released a few products related to land surfaces non CATDS (see here) Products related to soil moisture and climate/ extreme events (see Al Bitar et al) namely: 1) L4_Root_Zone_ Soil_Moisture -- a 1 m deep root zone soil moisture on SMOS grid for the period starting in January 2010 2) L4_Agricultural_Drought_Index - a drought index derived...

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Solar Flares as seen by SMOS

Category : Non classé

Dear SMOSers

Raúl Díez-García from the SMOS Calibration Expertise Centre at ESAC (Spain) tells us that last Wednesday (September 6th 2017) SMOS was able to observe the monster X9-class solar flare. Se below the Sun’s brightness temperatures of this event. At the maximum, it almost reaches 21 million Kelvin which is kind of hot!. He provided the following charts:

SolarFlare_X9_20170906SMOS observed temporal evolution of the Suns brightness temperatures during a solar flare (2017 09 06)

Find more details about the event here. I found it quite impressive!

But this event was followed by another one as the same sunspot erupted again last Sunday (September 10th 2017). It also was quite strong, being X8 class. See below the observed BT, more than 4 million Kelvin.

SolarFlare_X8_20170910SMOS observed temporal evolution of the Suns brightness temperatures during a solar flare (2017 09 10)

So if you are operating an L band radiometer double check your measurements for this period!



SMOS and Harvey

Category : Non classé

As most of you are well aware the Hurricane Harvey Texas very recently showing that maybe climate change is not a joke.

harvey_iss_tuesday.0harvey_wide-d38374ad54efe8ab25bf22013aee31c029f4ddf5-s800-c85

<– Harvey (Image: NASA)

Harvey’s  forecasted trajectory (National Hurricane Center, National Oceanic And Atmospheric Administration) ^

SMOS monitored wind speed while Harvey was travelling in the Gulf of Mexico and then we have been able to monitor the flooding using SMOS NRT SM data  (Nemesio Rodriguez-Fernandez – CESBIO) as depicted in this animation from August 20 to August 31st (click to see animation)

houston_zoom

Alexander Löw

Category : Non classé

Dear ColleaguesAlex-loew

I regret to have to tell you a very sad piece of information. One of our colleagues, Alex Löw tragically died in a car accident last week end. He had been with us since the inception of the Cal Val activities for SMOS and has always been very supportive of the passive microwave soil moisture approach. More important he was a very good scientist and we all enjoyed and gained by discussing science with him. He was also very pleasant man, always positive and smiling, never the last to have some fun and never taking himself too seriously. In short a very easy going but serious and enthusiastic colleague. I will for sure miss him a lot.

My deepest sympathy goes to his wife and children

New salinity products are available at CATDS!

Category : CATDS, L3, L4, Ocean

Dear CATDS user,

New salinity products are available at CATDS. A new correction for systematic errors (land-sea and seasonal-latitudinal ) has been implemented in CATDS CPDC and in CATDS CEC LOCEAN.

Concerning CATDS CPDC, a RE05 reprocessing of ocean salinity is available from January 2010 to March 2017; the operational processing has been updated accordingly. Binned maps at usual spatial and temporal resolution are available. The SMOS SSS corrected for systematic errors are in MIR_CSQ3 files; non corrected SMOS SSS remain available in MIR_CSF3 files. The corrected product is limited to 45N-47S, the correction remaining uncertain at higher latitudes. A new ATBD is available at http://www.catds.fr/Resources/Documentation.
You can download this product from the usual ftp site : ftp://ext-catds-cpdc:catds2010@ftp.ifremer.fr/Ocean_products/

Concerning CATDS CEC-LOCEAN, 9-day and 18-day products sampled at 25km resolution are provided every 4 days. They cover all latitudes from January 2010 to December 2016 (see further description in the documentation at http://www.catds.fr/Products/Available-products-from-CEC-OS/L3-Debiased-Locean-v2).
A validation of these products has been presented at EGU (see poster at http://www.catds.fr/Resources/Documentation).
You can download this product from the usual ftp site : ftp://ext-catds-cecos-locean:catds2010@ftp.ifremer.fr/Ocean_products/

Best regards

The CATDS Team

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