Alaska Ocean Observing System DMAG Capabilities - PowerPoint PPT Presentation

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Alaska Ocean Observing System DMAG Capabilities. Data management and modeling. Overview. Data management Modeling Transfer Access Analysis Visualization. Data Management. Automation of… Data transport (IN) Storage and processing of new data Product production

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Alaska Ocean Observing System DMAG Capabilities

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Alaska ocean observing system dmag capabilities l.jpg

Alaska Ocean Observing SystemDMAG Capabilities

Data management and modeling

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  • Data management

  • Modeling

  • Transfer

  • Access

  • Analysis

  • Visualization

Data management l.jpg

Data Management

Automation of…

  • Data transport (IN)

  • Storage and processing of new data

  • Product production

  • Data access; Data transport (OUT)

  • Data archive and safety

  • Metadata and data lineage

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  • Investigating ROMS modeling with biology & ice

  • Very experimental WRF-ARW runs in PWS, GOA, and SE Alaska

    • Infrastructure in place to allow automated runs of other models

    • Collaboration with AEFF

  • ARSC : near-operational WRF model run at 7.5 km statewide domain

  • Next challenges :

    • QA/QC of information for use as input to models

    • Data assimilation

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  • WRF-ARW @ ARSC (NorthAlaska6)

PWS 4km


NorthAlaska6 7.5 km

SEBS: Southeast

Bering Sea

SE 10 km

GOA 10km

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Data transport (IN)

Active data transport

  • FTP :

  • A specific username/password may be assigned

  • Strictly anonymous is also allowed

  • Scripting required to begin processing

  • RAMS/AEFF, webcams, monthly SWAN, cruise data

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Data transport (IN)

Passive data transport

  • AOOS grabs data

    • Straight up HTTP : OPeNDAP, screen scrape (NDBC)

    • Some other web service : SnoTel/AMBCS

    • FTP; OPeNDAP; …

  • Requires polling of remote server(s)

  • New data is detectable and leads to automatic processing

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Access; Data transport (OUT)

  • Access to raw data for download and custom visualization (HTTP)

  • OPeNDAP services

  • Development of OGC GIS data protocols

    • Graphical front end : UMN Mapserver

    • WMS, WFS, and WCS layers : ArcIMS

  • Data Catalog Explorer (Query -> ASCII)

  • Metadata -> data ; Data -> metadata

  • Text, NetCDF, HDF and GIS shape file products can be created to user specifications

    • Maintain compatibility with IOOS protocols data transport, if possible

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Access; Data transport (OUT)

  • Raw (HTTP) :

  • OPeNDAP :

  • Data Catalog Explorer :


  • UMN Mapserver (GIS) : beta


  • Metadata :


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Open source software

  • Specialized graphics will require porting from commercial applications to open source software

  • Computations that require special tools, IDL or Matlab, will increase licensing, support and general processing overhead

  • AOOS provides basic analysis

  • More complex analysis is driven by user requests and support (it must be automated)

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Analysis -> Verification

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  • Data Catalog Explorer

  • GIS web application : UMN Mapserver

  • Metadata -> Data

  • Custom visualization products

  • Custom analysis products

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Data Catalog Explorer

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UMN Mapserver

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46081 : ADCP

Custom products

Name: Snow and Ice Depth Provider:Hajo Eicken, Barrow Sea Ice Observatory, UAF


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Homework, action items, needs…

  • Get data and products to AOOS

    • Data: great, Graphics: ok; FTP, HTTP, OPeNDAP, IOOS protocol

  • Visualization needs

    • Send us examples of data and graphics

    • Snippets of code are also helpful

  • Data format and access needs

    • Special formats and/or structure need to be known in advance

    • Attempt to make it IOOS compatible

    • Data and products may be restricted

      • Automated, if static IP addressing is used

      • More difficult, if user authentication is required

  • Data and products can be delivered

    • If the process can be completely automated

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Contact Information

Alaska Ocean Observing System

Rob Cermak


School of Fisheries and Ocean Sciences

O’Neill Building, Suite 245

905 North Koyukuk Drive

Fairbanks, AK 99775

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