smos user workshop

20 October 2010 | KlimaCampus Hamburg | Germany

SMOS Data Distribution

smos user workshop

20 October 2010 | KlimaCampus Hamburg | Germany

Support SMOS Commissioning Phase

• Task within CalValPortal Project• Supply one-stop access point for SMOS

Cal/Val teams• Distribute recent acquisitions• Short-term archive (online)• Long-term archive (offline)

Frame

smos user workshop

20 October 2010 | KlimaCampus Hamburg | Germany

“The CEOS is providing information and data for calibration(Cal) and Validation (Val) of

Earth Observation (EO) data through this portal.”

Web Portal providing• Information• Data• Tools• Campaign support

CalValPortal (1)

smos user workshop

20 October 2010 | KlimaCampus Hamburg | Germany

Information• Cal/Val best practices• Sensor specifications

Data• Satellite data• Ground measurements

Campaign support• Campaign specific pages• Forum

„calvalportal.ceos.org“

CalValPortal (2)

smos user workshop

20 October 2010 | KlimaCampus Hamburg | Germany

• Receive all SMOS acquisitions from ESAC• Distribute data to PIs according to requests

– EE subset over sites (L1c and L2)– Pole–to-Pole files if requested– Auxiliary files

• Notify PIs by Email• Log up- and download traffic

• Mid-term rolling archive (online)• Long term archive (offline)

SMOS-DD Purpose

smos user workshop

20 October 2010 | KlimaCampus Hamburg | Germany

SMOS-DD Data Flow

ESAC (Spain)

LTA ESRIN (Italy)Fallback

FTP-push

FTP-pushSMOS-DDBC (Geesthacht)

FTP-get

PIs

smos user workshop

20 October 2010 | KlimaCampus Hamburg | Germany

Expected traffic• Upload of up to 60 GB/day from ESA• Download of up to 100 GB/day by users

Failsafe system• Dual server installation• Automatic mirroring

SMOS-DD Constraints

smos user workshop

20 October 2010 | KlimaCampus Hamburg | Germany

• Start of SMOS-DD test phase April 2009• Official start of SMOS-DD in March 2010• System runs operational• Availability > 99.99 % since April 2009

• Serves ~ 70 PI‘s• Registered for ~ 130 Test-Sites

SMOS-DD Current State

smos user workshop

20 October 2010 | KlimaCampus Hamburg | Germany

• Data uploaded by ESA– ~ 500.000 Files, volume of 7.8 TB, ~ 3 TB available online

• Data downloaded by Users:– Subsets over sites and pole-to-pole files– ~ 2.300.000 files made available to users– Actual download volumes

• July 2010: 59.362 files, 2.0 TB• August 2010: 92.625 files, 2.9 TB• September 2010: 115.136 files, 3.2 TB

SMOS-DD Total Traffic