Why a Policy Support System? Examples from the Andes BFP

Why a PSS?Policies are better when based on the science (natural and social), so

how do we get the analysts to look at the science? - make it accessible,

easily understood and relevant to their needs.

What is a PSS (Policy Support System) :

•combines best available data and knowledge of process (models),

•integrated spatial database and test-bed for user policies or

interventions

•leaving the simplest possible messages without losing the important

complexity of the data and the science,

• a flexible and dynamic project legacy in addition to static data and

publications,

•visual and informative to a wide range of audiences, a learning and

thinking tool

•A clearly defined output requiring specific inputs (sub-models) from

each WP in the BFP,

SIMTERRA

FRAMEWORK

(collection of tools

for analysis and

Modelling)

SIMTERRA

DATABASE

(>2TB of global data

at 1km and 1ha resolution)

SIMTERRA

FRAMEWORK (Web and

geo-browser based user

interface)

FIESTA, PATTERN...

The SimTerra PSS framework and the AguaAndes PSS

User-base: expert

knowledge (YOU

)

AGUA-ANDES

SIMTERRA

It is different things to different people. The interface changes for scientists (detailed, shown), policy makers (less detailed)

The AguaAndes PSS so far.

Multilingual.

Scientist, English

Policy analyst, Spanish.

Interfaces with geobrowsers like Google maps....

...and an embedded Google Earth

Shows the system being modelled...

...with links to the subsystems (this is hydrology)...

...and from there to the relevant part of the documentation (not yet written!)

You start by defining the area you want support for. The SimTerra database has 1 degree raster tiles (@100m resolution, shown) and 10 degree tiles at 1km resolution)

If you are logged in as a scientist you then access the simulation parameters which can be edited (collaboratively) in a Google spreadsheet (which AguaAndes then reads)

AguaAndes will then download all of the datasets necessary to run the simulation for your chosen tile. You can add your own

data if you have better data.

The data are downloaded to your workspace on our servers (since AguaAndes

runs on our servers not your local machine). Links are provided so that you can

download any data which are not copyrighted or you can view the data in situ.

These are 3-hourly gridded

rainfall series for your tile from

www.kcl.ac.uk/geodata

This is 1km rainfall for your tile from the SimTerra database

This is 90m resolution elevation for your tile

...geobrowsed

You can then choose from a set of policy options to implement

...along with climatic or other futures

You can then run the simulation. We have added some of the

hydrological models. You can set the simulation period (historic or

scenario)

...and run a simulation

...accessing results in a geobrowser

e.g. water balance for this tile around Lake Arenal, Costa Rica