Web Portal Scheduled Maintenance
Please be informed that our PO.DAAC Web Site (http://podaac.jpl.nasa.gov) may be unavailable for scheduled upgrade on 5/6/2016 (Friday) between 9am - 11am (PST).
MODIS Sea Surface Temperature Outage
Recent MODIS SST datasets have not been available since Sunday (5/1/2016) due to a power outage at the NASA Ocean Biology Processing Group (the MODIS ocean processing center). Data are expected to resume by Wednesday of this week (5/4/2016).
JPL Scheduled Network Maintenance
Please be informed that PO.DAAC public services may experienced intermittent downtime during the JPL Scheduled Network Maintenance window this Saturday (4/30/2016).
2016 NASA Earthdata ADVICE Webinar Series
PO.DAAC participated in a NASA Earthdata "Aquarius Data Visualization, Interpretation, Communication & Engagement (ADVICE)" webinar series in April 2016. During the 4-week session, participants learned how to:
- Prepare data for their research
- Master skills with salinity science & data experts
- Get feedback on the effectiveness of their take-home message
Details on each session are provided below.
Scheduled System Maintenance
PO.DAAC will be performing maintenance on our Data Management and Archive System on Wednesday 4/6/16 from 8am to noon PDT. There will be no new data posted during this maintenance window. All existing data will continue to be available through all of our tools and services. All data collected during this maintenance window will be processed and posted after the maintenance is completed. We apologize for the inconvenience.
2016 User Working Group (UWG) Meeting
PO.DAAC welcomed our UWG, NASA HQ officials, and other DAAC representatives for the annual meeting on 22-23 March 2016.
Sensing Our Planet article highlighting PODAAC data
Featured on the NASA Earthdata Web site. “Heart of drought”, a mighty forest fades in the Congo.
To read article, please visit: https://earthdata.nasa.gov/user-resources/sensing-our-planet/heart-of-drought.
Web Portal Scheduled Maintenance
Please be informed that our PO.DAAC Web Site (http://podaac.jpl.nasa.gov) will be unavailable for scheduled upgrade on 2/2/2016 (Tuesday) from 2pm-3:30pm (PST).
Water Cycle
The water cycle is how atmosphere, land and ocean processes interact with each other. Since the launch of TOPEX/Poseidon in 1992 lake levels have been monitored, but not on a global scale due to the limitations of the instruments and orbit. The hope is that the future mission, SWOT, will be able to remedy the current issues with radar altimeters as it will have a much larger observation area and measure heights and a finer resolution. [Credit: CNES (Centre National d'Etudes Spatiales) and Mira Productions].
Sea Level
Altimetric satellites are able to measure sea level and can observe how it has been changing with climate change since 1992. Not only can they tell us the global change but also the regional changes. Sea level changes are due to thermal expansion of water, melting of the polar ice caps and continental glaciers and water inputs from land. Tide gauges are able to tell us that sea level rose at a slower rate before the 1990s and then the global sea level trend increased after that. This is likely due to the increase of greenhouse gasses and climate change.