The first two COMMON DATA PROCESSING and DISPLAY UNITs (CDPDU) will be on display simultaneously in Paris and Tokyo. The Common Data Processing and Display Unit (CDPDU) is a data display and processing architecture built to open hardware and software standards. The CDPDU will serve as one of the public faces of the Arctic Perspective Initiative project throughout its duration. The first prototypes of the data collection units are installed in Montreal, Quebec, Santa Barbara, California, Ljubljana, Slovenia and Igloolik, Nunavut. These collection units are all sending their data in real-time to the CDPDU in order to be processed and displayed for the public.
In its next phase, multiple CDPDU’s will function as a networked computational cluster for the aggregation, processing and display the data and content produced within the API framework. The network of the collection units and the CDPDUs will serve as an interface to the public in addition to disseminating the data to be further studied by scientists, used by artists, or aggregated into larger research clusters. The hardware and software architectures of the CDPDU are opensource; their documentation, and the data collected will be available through the www.arcticperspective.org website from June 1, 2009 on.
The datasets displayed are the first attempt to follow through on the NASA Common Data Format standard. The Common Data Format (CDF) is a self-describing data format for the storage and manipulation of scalar and multidimensional data in a platform- and discipline-independent fashion. When one first hears the term "Common Data Format" one intuitively thinks of data formats in the traditional (i.e. messy/convoluted storage of data on disk or tape) sense of the word. Although CDF has its own internal self describing format, it consists of more than just a data format. CDF is a scientific data management package (known as the "CDF Library") which allows programmers and application developers to manage and manipulate scalar, vector, and multi-dimensional data arrays. The irony of the term "FORMAT" is that the actual data format which CDF utilizes is completely transparent to the user and accessible through a consistent set of interface (known as the "CDF Interface") routines. Therefore, programmers are not burdened with performing low level I/O's to physically format and unformat the data file. This is all done for them automatically.
The datasets displayed on the CDPDU are the acquired, processed and displayed from the following sources:
- Terra, Aqua and SeaStar, (MODIS instrument, SeaWiFS instrument)
- the ARCTIC PERSPECTIVE INITIATIVE Hydroponic Test Units (API HTU)
- the University of California Santa Barbara STEM initiative Experimental Sensor System (UCSB STEM ESS)
- BLACKCLOUD.ORG project, headed by Greg Niemeyer, University of California Berkeley (www.blackcloud.org)
Sensors and displays list:
- AQUA SATELLITE MODIS INSTRUMENT CLOROPHYL CONCENTRATION
- TERRA SATELLITE MODIS INSTRUMENT CLOROPHYL CONCENTRATION
- AQUA SATELLITE MODIS INSTRUMENT PARTICULATE ORGANIC CARBON
- AQUA SATELLITE MODIS INSTRUMENT SEA SURFACE TEMPERATURE DAYTIME
- AQUA SATELLITE MODIS INSTRUMENT SEA SURFACE TEMPERATURE NIGHTTIME
- AQUA SATELLITE MODIS AEROSOL OPTICAL THICKNESS
- SEASTAR SATELLITE SEAWIFS INSTRUMENT BIOSPHERE NORMALIZED DIFFERENCE VEGETATION INDEX
- SEASTAR SATELLITE SEAWIFS INSTRUMENT LAND REFLECTANCE
- SEASTAR SATELLITE SEAWIFS INSTRUMENT PHOTOSYNTHETICALLY AVAILABLE RADIATION
- API HTU Montreal, Santa Barbara environmental sensors and images
- UCSB STEM ESS environmental sensors and image processing
- BLACKCLOUD sensor systems
The SeaStar spacecraft, developed by Orbital Sciences Corporation, carries the SeaWiFS instrument and was launched to low Earth orbit on board an extended Pegasus launch vehicle on August 1, 1997. The Moderate Resolution Imaging Spectroradiometer MODIS instrument is operating on both the Terra and Aqua spacecraft. It has a viewing swath width of 2,330 km and views the entire surface of the Earth every one to two days. Its detectors measure 36 spectral bands between 0.405 and 14.385 µm, and it acquires data at three spatial resolutions -- 250m, 500m, and 1,000m. The first MODIS instrument was launched on board the Terra satellite on 18 December 1999, and the second was launched on board the Aqua satellite on 4 May 2002. The MODIS instruments provide calibrated, geolocated radiance data from individual bands, and a series of geophysical products from land, ocean, and atmosphere disciplines that can be used for studies of processes and trends on local to global scales. This data helps scientists understand the Earth as a system, facilitating their ability to predict global climate changes and to differentiate between the impact of human activities and natural activities on the environment.
The satellite data displayed in this first phase is processed by the NASA/Goddard OceanColor Group at the Goddard Space Flight Center Distributed Active Data Center and can be used for research and educational purposes only and are part of research into satellite data display that is being conducted at the University of California Santa Barbara Media Arts and Technology Program under the direction of Prof. Marko Peljhan.
The API HTU systems was designed and developed by the Matthew Biederman and Marko Peljhan for the purposes of the API funded development for polar art/science research, the UCSB STEM ESS is designed and developed by the students of UCSB MAT under the direction of Prof. Marko Peljhan.
The BLACKCLOUD project was designed and developed by the BLACKCLOUD team, headed by Greg Niemeyer at UCB.
The COMMON DATA PROCESSING AND DISPLAY UNIT is a project that will grow throughout the duration of the presentation in Tokyo and Paris with new datasets added on an as need basis, as the systems engineering and the CDDPU network will grow.
CDPDU Project team:
Concept: Marko Peljhan
Software and hardware frameworks: Matthew Biederman, UCSB MATP (Amichi Amar, Wesley Smith, Pablo Colapinto, Anil Camci, Andres Burbano), SeaDAS, NASA/Goddard Ocean Color Group, Marko Peljhan
Enclosure engineering: Nejc Trost, Samo Stopar, Andrej Bizjak
Renders: Nejc Trost
Workshop: C-ASTRAL Inc., Slovenia
Supported by: University of California Santa Barbara, Media Arts and Technology Program
Blackcloud was funded by the Digital Media Learning Grant from the MacArthur Foundation, as well as Swissnex, Pro Helvetia and the Mellon Foundation. Team Rhea Cortado (Costume Designer), Aida Eltorie (Arts Manager), Andy Garcia (Teacher, Manual Arts High School), Laura Greig (Artist/web designer), Farley Gwazda (Artist), Nik Hanselmann (Programmer/Artist), Eric Kaltman (Programmer), Geoff Koops (Artist), Reza Naima (Hardware Engineer), Greg Niemeyer (Principal Investigator) and Daye Rogers (Video Documentary).
Thanks to: UCSB MATP, George Legrady, C-ASTRAL Inc., Slovenia
With the support of the Ministry of Culture, Republic of Slovenia, City of Ljubljana Cultural Department