key focus of this talk : dasi – distributed arrays of small instrumentation

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Ground-Based Networks for System-Level GeoSpace Investigations Eric Donovan – ILWS Meeting – June 12, 2007 ILWS Overarching Objective (in a nutshell) – Achieve System- Level understanding of GeoSpace. ILWS should (does?) recognize that GB observations must be an integral part of the ILWS effort. GB is essential to the science objectives of THEMIS, RBSPs, ERG, ORBITALS, KuaFu, MMS, SWARM (for GeoSpace), Cross Scale, etc. ICESTAR, CAWSES/SCOSTEP, IHY, IPY, CEDAR, GEM, THEMIS-GBO, Cluster GBWG, eGY, etc. – There is a general theme of data exploitation (turning information into knowledge). We want to add to, but not duplicate, these efforts. This is problematic for the ILWS GBTG Key focus of this talk: DASI Distributed Arrays of Small Instrumentation. …And the move towards “Globalization”

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Ground-Based Networks for System-Level GeoSpace Investigations Eric Donovan – ILWS Meeting – June 12, 2007. - PowerPoint PPT Presentation

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Page 1: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

Ground-Based Networks for System-Level GeoSpace

InvestigationsEric Donovan – ILWS Meeting – June 12, 2007

ILWS Overarching Objective (in a nutshell) – Achieve System-Level understanding of GeoSpace. ILWS should (does?) recognize that GB observations must be an integral part of the ILWS effort. GB is essential to the science objectives of THEMIS, RBSPs, ERG, ORBITALS, KuaFu, MMS, SWARM (for GeoSpace), Cross Scale, etc.ICESTAR, CAWSES/SCOSTEP, IHY, IPY, CEDAR, GEM, THEMIS-GBO, Cluster GBWG, eGY, etc. – There is a general theme of data exploitation (turning information into knowledge). We want to add to, but not duplicate, these efforts. This is problematic for the ILWS GBTGKey focus of this talk: DASI – Distributed Arrays of Small Instrumentation. …And the move towards

“Globalization”

Page 2: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

The idea is to populate wide geographic regions (possibly even the globe) with ground-based instruments for remote sensing the spheres of scientific interest o our respective communities. The objective is “system-level science”, but that is still ill-defined.

Page 3: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

SuperDARN/PolarDARNCARISMA CANMOSCADINORSTARF10.7FDAM (Assim./Model.)CHAIN*AUGO*

National Efforts

AMISRTHEMIS-GBOMACCS OMTISuperDARN/StormDARN

* Expected to compete in upcoming CGSM AO

Partners15 “core sites”>40 sites in totalInvolves at least 8 organizations in CanadaInfrastructure enhancements funded by CFI, CSA and othersOperations and some science funded by CSA

Canadian GeoSpace Monitoring (CGSM)

Page 4: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

THEMIS GBO Network

Page 5: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation
Page 6: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

There are equivalently large or larger networks in the ionosonde, GPS, induction coil, VLF, etc world.

There are literally thousands of instruments presently deployed that are a defacto DASI.

Page 7: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

There are facilities and programs all over the world…

(1) Networks of small instruments: CGSM, MIRACLE, UNIS, AGI, AUGO, MEASURE, MERIDIAN, THEMIS GBO, InterMagnet, SuperDARN, etc. etc.

(2) Large multi-instrument observatories at the location of large facilities: Poker Flat, Resolute Bay, Sondrestrom, Tromso, Millstone, South Pole Station, SuperDARN sites, etc. etc.

(3) The growing “network” of virtual observatories: VMO/G, VMO/U, VITMO, VSO, VSPO, SPIDR, GAIA, Gloria, SuperDARN, etc. etc. There should be an inventory of capacity…

(1) What sites are out there?

(2) What instruments are out there?

(3) Where is data available?

(4) What is likely to come in the near future?

Note that capacity surveys have been carried out in the past not to much avail – why?

(1) The output of these surveys has not been in a uniform format and generally these have not been incorporated into relational databases

(2) The big “carrot” has not been there – if a big player (ie., NSF or equivalent agency or agencies) gets going on DASI the rest of the world will follow – they will have to!

Page 8: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

Multi-Instrument Site Capability – Could be “franchised”

DASI is more about how we do what we do

CGSM

Page 9: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

At the national agency level invest in site infrastructure that supports expanding networks (cheap, robust, extra slots, telemetry, monitoring software, long term, etc)

A few extra slots for instruments in he THEMIS GBOs would have enable a lot of additional science.

Page 10: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

International (formally US, Canada)Multi-instrument (white light ASI, mag)Multi-agency (formally NASA, CSA)It could grow in nations involved (UK, Norway,

China, Finland, …)

Agencies (NSF, NASA, CSA, STFC, NSERC, etc) would need to forge a strong and enduring partnership – and money would likely have to flow across borders.

Page 11: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

Multi-Instrument Sites form the core…

Instrument A Instrument B Instrument C Instrument C Instrument N● ● ● ● ●

Housekeeping

LAN

firewall

The Internet

Every site would allow for additional instruments in a plug and play fashion

Page 12: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

These are stitched together to make national programs that in turn form the backbone of a global array…

The Internet

Site C3

Site C6

Site C5

Site C4

Site C2

Site C1

Site C0

Site F3

Site F6

Site F5

Site F4

Site F2

Site F1

Site F0

CGSM MIRACLE

In the end …. the dozens of contributing programs would be of all sizes and evolving over time, but all with the same ethos.

Site M3

Site M6

Site M5

Site M4

Site M2

Site M1

Site M0

MERIDIAN

Page 13: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

Such things can be done…

There must be many, but an obvious analogy is the ARGOS project

(1) thousands of autonomous buoys that drift around the ocean

(2) each is identical

(3) each undergoes cycles that probe salinity/temperature profiles

(4) the drifting of these buoys is interesting in and of itself

(5) the US funded the lions share of the buoys, but many other countries have contributed

(6) other nations have contributed to design, data management, etc

Page 14: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

Make data products that facilitate rapid extraction of knowledge from presently unmanageable masses of information.

The Data Issue is Very Important

SuperDARN is really the only group that has done the well… Map Potential is widely used and synthesizes Gbytes of data into a global synoptic data product that is at once easily interpreted visually and readily assimilated into models.

The GPS community is not far off with global TEC maps.We should work towards similar products for magnetic

field, neutral winds, precipitation, etc.It is worth noting that the most successful example

(SuperDARN) came from the observational community.

Page 15: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

One guy’s (my) thoughts

It is inevitable that…

(1) there will be a proliferation of ground-based geospace instrumentation

(2) it will become easier to retrieve the data from these in real time

(3) it will become easier to have higher resolution data than the real time operation affords

(4) it will become easier to integrate data from disparate sources, programs, instruments, etc.DASI

(1) is not yet a program.

(2) is more about protocols than hardware – an effective DASI “ethos” will maximize the impact of the now disparate global ground-based efforts: spend extra money to make sites more naturally multi-instrument, provide extra funds to host extra instruments, develop packages of plug-and-play software and hardware for site management, and on and on…

(3) must be international or it will not work – the global community must be engaged

(4) support new and especially small (developing) players – if you are setting up 50 sites with 50 GPS units, etc, well…. buy 60 and give 10 or so to another researcher.

(5) needs to be made into a program with some funding to create new resources that reinforce the DASI “ethos” (ie., VxOs, infrastructure for multi-instrument sites, software to support satellite and land-line internet telemetry, new instruments NOT on top of existing instruments, etc.). Establish a steering committee, hold the international workshops, engage partners, carry out North American DASI Phase I, etc.

(6) is not everything – observational campaigns, dense networks of multi-instrument stations, Class I facilities, etc are and will remain essential – done right DASI would be like GOES, DMSP, or LANL – larger in impact than one satellite but nevertheless part of a larger whole

Page 16: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

… and suggestions for concrete steps

So what should we do?

(1) brainstorm on what expertise and knowledge is needed to make DASI happen – with this in mind establish a DASI steering committee (look to CAWSES, ICESTAR, GEM, CEDAR, etc).

(2) host system-level science definition workshops – choose five grand challenge themes.

(3) use the outcome of (2) to establish observational requirements for DASI sites.

(4) devote resources to developing a web accessible data base for capacity surveys.

(5) carry out the capacity surveys – make them complete, searchable, useable, and updatable.

(6) devote resources to the evolving (international) geospace data environment - ensure that data from DASI instruments are readily available via the growing network of VxOs and make sure that VxOs complement rather than duplicate each other.

(7) devote resources to bringing together those responsible for the operations of multi-instrument sites (MERIDIAN, MIRACLE, SRI, THEMIS-GBO, CGSM, AGO, AUGO, UAGI, PENGUIn, CANMOS, SuperDARN, EISCAT, etc etc). Address site management, data transport, standards, etc. This forms the “spacecraft bus” for DASI.

(8) There is interest in a DASI Phase I that would have all the elements of DASI – science driven, multi-national, multi-agency, multi-instrument program. Make it real, perhaps starting with the USA (NSF), Canada (CSA), Denmark, and Mexico.

(9) use outputs of (3) & (5) to determine what we can add to what we have by 2010 (examples may be StormDARN, CHAIN, MF radars, FPIs, GPS & mag array enhancements, etc.)

(10) engage instrument teams, modellers, data assimilation experts, and of course funding agencies and implement enhancements established in (8)

Page 17: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

The science??

DASI would address “System Level Science”

We need the exciting and clearly elucidated science questions

This is non-trivial – think of what was involved in the mission definition for the

Geospace Storm Probes, or Cross-Scale, or any other large and complex program.

This is no different.

We need to do the same thing (mission definition), to develop a set of themes that

make what are otherwise viewed as contextual observations or more of the same

more exciting… what is new and why is it exciting?

I am not sure how this can or would happen but we face the same thing in KuaFu-B

(why are imaging missions are hard to sell?).

This is definitely beyond one person… but if I can put forward some thoughts…

evolution of structure in cosmic plasmas (classical, SOC, and more)

role of interaction between major system elements in the overall dynamic

the science of sensor webs

Page 18: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

A Rejuvenated ILWS GB-TG (in brief)

Make a smaller more focussed group

Spend time working with various groups defining “system level science objectives”

Develop requirements for a DASI-like global network

One agency sponsor a web-based data-base to accomplish a global inventory of capacity

Avoid the data issue (it’s being done)

Avoid reproducing efforts like CAWSES, IHY, eGY etc.

Initiate a “science at the networks level” program (international complement to DASI)

Assess what we do and what others do - Change “the way we do what we do”

Utilize this global initiative to provide ground-based complementary observations

Do it!

But… we need some direction from you…

Page 19: Key focus of this talk :  DASI  –  Distributed Arrays of Small Instrumentation

Thank You