MSR Internship 07 Whats cooking ? Jayant Gupchup MSR Intern 07, Ph.D., The Johns Hopkins University BARC, 072 Outline Part 1: AmeriFlux Help AmeriFlux scientists browse the cube (No more MDX, really ?? ) Analyze the data in Matlab (Lets face it.. Matlab is more powerful than excel) Part 2: Russian River Apply Spectral and Pattern recognition techniques to try and answer Rebeccas questions. BARC, 073 AmeriFlux MDX Builder Query Cube (Get the data out of the cube) Render Cube Results Plot Results using Matlab MDX ?? BARC, 074 MDX Builder What you want ? About whom you want ? What period ? Group by MDX : SELECT NON EMPTY CROSSJOIN ({[Datumtype].[Datumtype].&[32],[Datumtype].[Datumtype].&[8]}, {[Site].[VegType].[VegType]},{[Site].[Longitude]}) DIMENSION PROPERTIES PARENT_UNIQUE_NAME ON COLUMNS, NON EMPTY CROSSJOIN ({[Timeline].[Year].&[2000]:[Timeline].[Year].&[2006]}, {[Timeline].[Day of Year].[Day of Year]}) DIMENSION PROPERTIES PARENT_UNIQUE_NAME ON ROWS FROM BevLawCube WHERE {[Measures].[GPPOverLE]} BARC, 075 Dimensions (A Pain in the MDX BARC, 076 Query the cube & Render MDX Query HTML/ASP Query Results Serializer Matlab reads HTML Deserializer MATLAB OBJECT : rows: 1096 cols: 10 dim1axes: 3 dim2axes: 2 dim: [1x2 struct] data: [1096x10 double] axis: [1x3 struct] axis: [1x2 struct] MATLABASP/C# BARC, 077 Plots using Matlab BARC, 078 To Do (Connect the dots !) MDX Builder Cube Reader Cube Renderer Matlab Plots BARC, 079 Russian River (So far) Build Flood DB: Identify interesting sites & ones with good data Compute Flood cut-off values for different sites Associate the same flood at different sites Time Delay Overlap between floods. BARC, 0710 The Cool stuff Address some science questions: Correlate Discharge, Embeddedness with Turbidity Fish density / distribution Landuse 1.5 year flow analysis. Identify patterns and trends in Flow statistics such as, Time2Peak, AreaUnderFlow etc. Classify flood origins using discharge signatures. BARC, 0711 Discussion