sudhir shrestha solution engineer, science team ......title scientific data management and...
TRANSCRIPT
![Page 1: Sudhir Shrestha Solution Engineer, Science Team ......Title Scientific Data Management and Dissemination Author Esri Subject 2017 Esri Federal GIS Conference--Presentation Keywords](https://reader031.vdocument.in/reader031/viewer/2022011911/5f94c51f7f7c7c0e5f38d18e/html5/thumbnails/1.jpg)
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Sudhir Shrestha
Solution Engineer, Science Team
Scientific Data Management and Dissemination
February 14, 2017 | Washington, DC
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What we will cover today
· Scientific Multidimensional Data
· Ingesting and managing
· Visualizing and analyzing
· Disseminating and consuming
· Spatiotemporal Anomaly Detection
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Scientific Data
Oceanographic
• Salinity
• Sea Temperature
• Ocean current
Meteorological
• Temperature
• Humidity
• Wind speed/direction
Terrestrial
• Soil moisture
• NDVI
• Land cover
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Challenges
variety of formats
volume & velocity
redundancy
portability
scalability
reproducibility
integration
standards
accessibility
Analyze ShareManage
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Multidimensional Rasters
Gridded
Multidimensional
Multivariate
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Demo
Using data & information products in a WebGIS
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Ingesting and Managing Data
![Page 8: Sudhir Shrestha Solution Engineer, Science Team ......Title Scientific Data Management and Dissemination Author Esri Subject 2017 Esri Federal GIS Conference--Presentation Keywords](https://reader031.vdocument.in/reader031/viewer/2022011911/5f94c51f7f7c7c0e5f38d18e/html5/thumbnails/8.jpg)
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Multidimensional Mosaic Dataset
mosaic
table
raster pixels
Representing multivariate collection of multidimensional rasters in ArcGIS
mosaic dataset
spatially-indexed catalog
multi-resolution, multivariate, multidimensional
reduce storage redundancy & pixel resampling
defines information products
on-demand processing
HDF
GRIB
netCDF
d-aware rasters
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Tabular View
Tabular view of items in a multivariate multidimensional mosaic dataset
Raster Shape Variable StdTime StdZ
… … Temperature 3/22/2016 -10
… … Temperature 3/23/2016 -10
… … Temperature 3/24/2016 -10
… … Salinity 3/22/2016 -10
… … Salinity 3/23/2016 -10
… … Salinity 3/24/2016 -10
… … Temperature 3/22/2016 -20
… … Temperature 3/23/2016 -20
… … … … …
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Metadata
· Variables
· Dimensions
· Values
· Statistics
Describing the structure of a multivariate multidimensional mosaic dataset
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Raster Types
Format-agnostic direct ingestion of rasters into a mosaic dataset
raster type
crawls disk
identifies rasters
extracts metadata
attaches processing
data on disk mosaic dataset
netCDF
HDF
GRIB
d-aware rasters
stores no pixels
references rasters
stores processing & metadata
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Geoprocessing
Managing a mosaic dataset
· Tools—building blocks for managing data
· Data Management ≻ Raster ≻ Mosaic Dataset
· Intuitive UI for interactive workflows
· ModelBuilder: composite operations
· Python: automate or extend
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Demo
Make a netCDF raster layer
Populate a mosaic dataset using a raster type
Properties of a multidimensional mosaic dataset
Attribute table of a mosaic layer
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ArcGIS for Server
Make your mosaic dataset accessible to other users as a web-enabled dynamic image service
mosaic dataset image service
dynamic, on-demand
web-based access to data
rich information model
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Visualizing and Analyzing
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Filtering
slicing & dicing a multivariate multidimensional mosaic dataset
variables
value range(s) per dimension
SQL WHERE clause
dimension-orthogonal cutting & chopping
multidimensional filter
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Rendering
· Choose and customize
· Scalar or vector field
· Export and reuse
Control how original or transformed data is presented on a map
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Vector-field mosaic dataset
Multidimensional mosaic layer on map
Dimensional slicing & animation
Demo
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Raster Function: Transforming Raster Data
… using raster functions for on-the-fly processing
raster-valued transformation
piecewise, scale-aware
local / focal
on-demand processing
arity: unary, binary, …, n-ary, polyadicinput rasters
output rasterraster function
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Demo
Applying a simple transformation
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Dimensional Aggregation
Multidimensional filtering followed by aggregation using a raster function
dimensional
filtering
aggregating
function
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Python Raster Functions: Extending Analytic Capabilities
Choose from dozens of built-in functions or implement your own algorithm using Python
Learn more at: github.com/Esri/raster-functions
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Raster Models: Raster Function Templates
A portable & reusable chain of raster functions
raster variables
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Demo
Combining variables using a raster model
Raster models on a mosaic dataset
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Applying a Raster Model
image service
mosaic dataset
mosaic dataset item(s)
image layer on a desktop map
choose & customize a raster model
image service layer on a web map
define & transmit a raster model
choose & customize a raster model
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Disseminating and Consuming
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Access / Identity
Apps
Services
Desktop Web Device
Online Content and
Services
Server
multivariate multidimensional mosaic dataset
Disseminating
professionalgeospatial analysts
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Dissemination Strategies
· Tiled map service
· Dynamic map service
· Dynamic image service
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Sharing your data as an image
· Mosaic Dataset ≻ Generate Tile Cache
· Avoid copying source image to ArcGIS Online
· Cache tiles generated using ArcGIS for Desktop
· Accessed via tiled map service
Enable access to a static representation of your data as a map service
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Sharing data & information products
· Mosaic Dataset ≻ Share As Image Service
· Pixels & item metadata
· On-demand server-side processing
· Raster models: predefined or client-specified
· multidimensional info, filtering, vector fields
Enable access to a dynamic representation of your information product as an image service
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Demo
Publishing a multidimensional mosaic dataset
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Consuming your services
· In any ArcGIS application or any WMS client
· In a web map
· Identify web services driven by maps or datasets
· Bring service layers into a web map
· In a map-based application
· Configurable apps
· Story Maps
· Web AppBuilder
· Custom web apps using ArcGIS API for JavaScript
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Maps & Apps
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Maps & Apps
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Demo
Using image service layers in ArcGIS Online map viewer
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GIS workflows that scale
Manage Analyze Share
mosaic dataset
raster types
geoprocessing tools
multidimensional filter
animation & rendering
raster functions
dynamic web services
web maps & apps
raster analytics
… built for the characteristics of multidimensional scientific data
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Announcements (Cont)
Join us and continue the conversation in the FedGIS 2017 group on
GeoNet:
https://geonet.esri.com/community/events/fedgis
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Using Mosaic Datasets for Managing and Displaying Multidimensional Data at Highly Variable Scales
Dan Pisut, Vivek Goel, Tim Loomis
IMSG at the NOAA Visualization Lab
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The NOAAView Data Portal
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Working with SCALE: TIME
hoursdays
weeksmonths
yearsdecades
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Working with SCALE: REFRESH
Global Forecast System: updates every 6hrs with non-uniform temporal output for 2 weeks
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Working with SCALE: SPACE
Dissolved O2: Surface
Dissolved O2: 100m
Dissolved O2: 500m
Dissolved O2: 1,000m
Dissolved O2: 2,000m
Dissolved O2: 5,000m
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Working with SCALE: RESOLUTION
750m daily resolution
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67 global datasets207 variables~35,000 time steps~140,000 tile levels
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<javascript>
weekly
monthly
yearly
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weekly
monthly
yearly