SPEDAS SoftwareSlide − 1Snowmass, CO – June 2015 SPEDAS Developers Workshop GEM – Snowmass, CO June 17, 2015

SPEDAS Software Slide − 1 Snowmass, CO – June 2015

SPEDAS Developers WorkshopGEM – Snowmass, CO

June 17, 2015


Part I, 1:30PM : SPEDAS developers workshop

Opening remarks Jim Lewis, Vassilis Angelopoulos

Current state of SPEDASNew features in upcoming SPEDAS 1.1 release Plugin and mission data set presentations:

IUGONET Jim Lewis on behalf of Yoshimasa TanakaBARREL Alexa HalfordNOAA Rob RedmonWalk-ons?

Discussion, Q&A All

Part II, 3:30PM: TDAS demo and tutorial

Opening remarks Jim Lewis, Vassilis Angelopoulos

TDAS user tutorial and demo Patrick Cruce Discussion, Q&A, installation clinic All

Agenda


What is SPEDAS?

Space Physics Environment Data Analysis Software (SPEDAS)

- Grass-roots data analysis software for Space Physics Community

- SPEDAS is an outgrowth of THEMIS / ARTEMIS that supports multiple missions

- Standardizes retrieval of data from distributed repositories- Science processing and graphics contain powerful set of

legacy routines.- The THEMIS mission is served through the TDAS plugin

The SPEDAS framework: - Contains a GUI for ease of use (available through IDL VM

freeware)- Command line provides full access to IDL (paid license only) - Works with Windows, Linux and Mac OS X. - Is based on IDL, benefiting from platform independence and

software maintenance services.


To Load CDAWeb Data: - Select ‘Load Data using

CDAWeb’ under the File menu- Select Mission Group (i.e., TWINS, Cluster, RBSP, etc.)- Select the Instrument Type- Click ‘Find Datasets’- Select variable or dataset to

download- Click ‘Get CDAWeb Data’

Loading CDAWeb Data


SPEDAS Mini Language

reduced

• Simple scripting language has been written in IDL. • This language allows access to some data analysis functionality in the IDL virtual machine and eases manipulations of time series (tplot) data • This language allows composition of statements and functions with order of operations to give significant flexibility in statement construction

Examples:

1: Position to RE: calc,'"tha_pos_re" = "tha_state_pos"/6374.4’

2: Natural log of total esa density: calc,'"tha_density_log"

=ln("tha_peir_density"+"tha_psif_density“)

3: Average magnetic pressure: calc,'Pb_avg = mean(0.01*total("tha_fgs_dsl"^2,2)/25.132741)‘

Additional examples can be found in general/examples/crib_calc.pro


Analysis->Calculate panel


Magnetic Field Models

The GUI is now able to:- Model the field at the

spacecraft position- Trace field from position to the ionosphere and equator


Data Analysis

Active Data

Common Functions

Available Data


Load Data panel (IUGONET plugin tab)


Configuration settings panel (THEMIS plugin tab)


THEMIS and RBSP Plots

• With a few clicks of the button the user can load, analyze, and plot data.• Interactive Capabilities


crib_iugonet_20120122sc.pro

IUGONET, OMNI, Field Data

Yoshimasa Tanaka


THEMIS ASI / SuperDarn Radar

erg-sc_crib_thmasi_sd_sample

Tomo Hori


SPEDAS: Version 1.00 released in August 2014- Version 1.1 to start QA soon, release expected 3Q 2015- Dependencies on THEMIS code have been removed- New plugins: Akebono, MMS, POES, more on the way…

New tools for writing plugins:• spd_download: Alternative to file_retrieve, supports URLS with

HTTPS, embedded usernames and passwords• Netcdf2tplot: Similar to cdf2tplot, loads data from NetCDF files• spd_cotrans: Similar to thm_cotrans, but without the THEMIS

dependencies.

What’s new!


SPEDAS GUI: - More “hooks” for plugins to add features to the GUI

- Plugins can add items to the Data Analysis panel- Plugins can add items to the “Tools” Menu (for more complex tasks)- Plugins can add to the “About…” panel (credits, “rules of the road”, etc.- Each plugin supplies an ASCII configuration file, connecting SPEDAS GUI

features to the corresponding plugin procedures and functions to call

What’s new!


Plugin Data Analysis Menu

• Any plugin can add items to this menu.

• These routines operate on already-loaded data to produce new variables.

• Shown here: a superposed epoch analysis tool, and some THEMIS specific coordinate transforms, both from the TDAS plugin.


THEMIS superposed epoch tool


Plugin Configuration File, THEMIS


Plugin Configuration File, THEMIS


Plugin release and distribution: - SPEDAS 1.00 introduced the idea of “executable releases”, which

run in the IDL Virtual Machine environment, require no additional downloads from Exelis, and can be used without an IDL license.

- The downside is that the SPEDAS team had to compile the SPEDAS framework and all the plugins to build the release, but there was no way for users to apply incremental updates (for example, if a plugin was updated or if they wanted to add a new plugin).

- With SPEDAS 1.1, executable releases can have plugins added or updated by the user, without having to recompile everything. Plugin authors can distribute an IDL plugin.sav file with their compiled routines, and by placing this in the appropriate directory, it will be detected and integrated at runtime.

What’s new!


Spedas.org is now live!

SPEDAS and plugin downloads

Documentation wiki

Mailing list

Blog

We welcome plugin developers to contribute content and participate in discussions on the SPEDAS site! (Registration required for wiki and blog edit privileges; please contact Jim Lewis ([email protected]) to gain access).

mailto:[email protected]


SPEDAS Wiki

spedas.org/wiki

Introduction:- You Tube Channel - SPEDAS video- Introductory

Examples- Screen shots


SPEDAS Downloads

spedas.org/wiki/index.php?title=Downloads

Select:1.2 DownloadsFrom Main Page

Documents

SPEDAS SoftwareSlide − 1Snowmass, CO – June 2015 SPEDAS Developers Workshop GEM – Snowmass, CO June 17, 2015