Map symbols and coding means

Map symbols should be designed or chosen according to principles of logic and communication to serve as a graphic code for storing and retrieving data in a two or three dimensional geographic framework.

Appreciating the logic of map symbols begins with understanding the existence of three distinct categories, including point, line and polygons (areas).

Maps and 3D models include generally a combination of all three. These tree main categories can be further differentiated by variations in "hue" (color), "gray tone value", "texture" and "orientation", "shape" and "size".

Each of these variables or their combinations excel in portraying particular features and their variations.

When using color (hue) for characterizing areas, decoding is made simpler when darker means "more" and lighter means "less". Color conventions allow map symbols to exploit idealized associations of water with blue and forested areas with green. This the combination of the two, implies that dense primary forest is dark green, secondary forest green, and grassland light green, and that deep waters are dark blue and shallow waters light blue .

"Size" is more suited to for showing different in amount of count, whereas "variations in gray tone" are preferred for distinguishing differences in rate or intensity. Symbols varying in orientation are useful mostly for representing directional occurrences like winds, migration streams or other. Line symbols best portray water courses, roads, trails, boundaries and may combine different variables, including color and size (thickness). A heavier line readily suggests greater capacity or heavier traffic than a thin line implies.

Each symbol should be easily discernable from all others to clearly distinguish unlike features and provide a sense of graphic hierarchy. A poor match between the data and the visual variables may frustrate and confuse the map user.

While in planimetric mapmaking the only limitation in the choice of symbols is fantasy (with logic), participatory 3-D modeling (P3DM) frequently depends on the availability of materials, particularly for point features which are generally represented by push and map pins. Lines and polygons can be easily represented by color-coded yarns and different color paints.

Standardization of symbols serves for ready unambiguous recognition of features and promotes efficiency in both map production and use, exchange of data and comparison. Maps and models sharing a common graphic vocabulary are definitely more powerful in convening the intended message and decoding simpler.

P3DM after the 2007 World Summit Award

In November 2007 "Participatory 3D Modelling (P3DM) for Resource Use, Development Planning and Safeguarding Intangible Cultural Heritage in Fiji" was proclaimed as one of the four winners of the “Worlds Best e-Content 2007” in the World Summit Award category e-Culture.

Here is an account of what has happened since the exercise was carried out in Fiji.

Since 2005 (year in which the project in Fiji was implemented) Participatory 3D Modelling (P3DM) and been adopted in development contexts in many parts of the world (http://www.p3dm.org/) including Cambodia, Colombia, East Timor, Ethiopia, France, Guyana, Italy, Kenya, Malaysia, Nepal, PNG, Australia and other countries.

The 2007 WSA recognition added value and authority to the method and gave worldwide recognition to its quality and appropriateness.

In Kenya P3DM been used by Ogiek, Yiaku and Sengwer Indigenous Peoples to document their biophysical and cultural landscapes. The objectives of these community-led interventions included enhancing inter-generational information exchange, adding value and authority to local knowledge, improving communication with mainstream society, improving planning on sustainable management of natural resources and addressing territorial disputes.

In Ethiopia P3DM has been used to assist stakeholders in the Bale region to plan out sustainable management of the area, revive their bio-cultural diversity and support local environmental education.

The Indigenous Peoples of Africa Coordinating Committee (IPACC), a pan-African network of 150 organisations adopted the method and is spearheading its adoption in the African Continent to improve awareness at policy-making level on the relevance of location-specific traditional ecological knowledge (TEK) in climate change adaptation and mitigation processes. Read more.

UNESCO has been supporting the adoption of P3DM in Niger and Kenya in the context of the of the Convention for the Safeguarding of the Intangible Cultural Heritage paying specific attention on the opportunity for safeguarding traditional ecological knowledge as part of overall intangible cultural heritage and its integration into the education curricula.

In collaboration with national and regional partner organisations, the Technical Centre for Agricultural and Rural Cooperation EU-ACP (CTA) is supporting the dissemination and adoption of P3DM practice in ACP countries. Regional capacity building exercises are scheduled in Central Africa (Gabon and DCR), West Africa (Niger) and Southern Africa (Botswana) in 2010 and 2011.

In collaboration with a number of development agencies, CTA is spearheading the production of a training kit supporting the spread of good practice in generating, managing, analysing and communicating spatial information. The kit includes a module on participatory 3D Modelling.

Other initiatives include the ongoing online participatory translation of a video documentary on P3DM “Giving the Voice to the Unspoken” using the free platform http://dotsub.com/

Sculpture and Science help in Planning to Preserve The Mutton Hole Wetlands in Australia

A 3D model of the Mutton Hole Wetlands near Normanton has been developed as a starting point for community consultation and discussion about how best to preserve and use the Mutton Hole Wetlands.

The Mutton Hole Wetlands are situated just to the North and West of Normanton, and are a part of the Southern Gulf Aggregation, the largest continuous wetland of its type in northern Australia. Being vital for bird migration routes across northern Australia, the Southern Gulf Aggregation is considered to be of state, national and international significance.

In the past the wetlands formed part of the neighbouring Mutton Hole cattle station, but the area was declared a Conservation Park in 2004. Currently managed by Queensland Parks and Wildlife, Carpentaria Shire Council has been considering managing the park themselves. As a part of this consideration the Northern Gulf Resource Management Group has gained funding to write a management plan for the wetland.

The management plan will highlight Aboriginal culture as well as the environmental values of the wetland in a plan to conserve it for future generations. There is strong support from the scientific and local community for use of the wetlands for bird watching, teaching and eco-tourism. As a step towards greater community consultation a model of the wetland area was built and is now located in the Normanton Visitor Information Centre (Burns Philp Building).

Over six weeks in April and May 2009 students and staff from Normanton State School and the Gulf Christian College worked together with Dr Isla Grundy of CSIRO to construct a 3D model of the Mutton Hole Wetlands, using a technique called Participatory 3D Modelling (P3DM).

The model was made by first tracing the image of the wetlands from a 1:9500 satellite image onto a large piece of cardboard, then other features were added on or cut out. Finally, the rest of the landscape was painted onto the cardboard and the boundary of the Conservation Park marked with thread.

P3DM is a relatively new technique developed in the Philippines to support collaborative resource use and management, aimed to facilitate community participation in problem analysis and decision-making. This is the first time this participatory technique has been used to make a landscape model from cardboard in Australia.

Since mid-May 2009 the model has been displayed at the Normanton Visitors Information Centre and on Thursday 21st May there was a formal public opening when students, parents and interested community members came to see what the schools had been working on. The exhibition was opened by Vicki Jones of Northern Gulf, along with Isla Grundy of CSIRO and Agnes Hughes from Normanton State School. The forty or so people who attended were able to take a closer look at the model and discuss wetland history and potential use. The community at large was invited to give it’s opinions and ideas on how the Mutton Hole Wetlands should be managed and used in the future through individual community consultations and group discussions held at the Information Centre.

Source:

Dr Isla Grundy
Community Agro-Ecologist CSIRO Sustainable Ecosystems,
JCU / CSIRO Tropical Landscapes Joint Venture
Australian Tropical Forest Institute, James Cook University, Cairns, QLD 4870

Participatory 3D Modelling in Bale, Ethiopia

MELCA Mahiber, an Ethiopian NGO member of the African Biodiversity network (ABN), facilitated the construction of a large Participatory 3D Model covering 1,575 sq. km (at a 1:12,500-scale) in Bale and West Arsi, Ethiopia.

The exercise has been done to assist local communities in planning out a more sustainable management of the area, reviving local bio-cultural diversity and supporting local environmental education.

More information on the exercise is found here.

PGIS/PPGIS Global Forum - Year's end summary and greetings

The PGIS/PPGIS Global Forum [ppgis] has steadily grown, reaching a total of 1346 members as of today. Approximately 560 messages have been posted this year. The Spanish [ppgis-sp] chapter launched in 2007 has grown to a total of 113 members, while the French [ppgis-fr] and Portuguese [ppgis-pt]-speaking communities have been languishing (sorry!). Each chapter operates independently and is managed by groups of 4-6 moderators. All chapters can be reached and joined via the PGIS/PPGIS gateway http://www.ppgis.net/

On the PGIS/PPGIS Global forum [ppgis] postings and debates have been rich in terms of content and innovation. Year 2008 started with a debate on PGIS / PPGIS practice for conflict management. Amidst announcements and postings for sharing information or seeking advice, debates focused the use of PGIS practice in the development sector, understanding of PGIS vs. PPGIS, partnerships and success in PGIS, PPGIS and Vulnerability, PGIS/PPGIS indicators, fundraising for PGIS projects, P-mapping certification, PGIS for disaster response, measuring the appropriateness of PGIS, free and open source desktop GIS, land tenure before and after disasters, confidentiality of data, climate change & Google Earth, mapping with Mobile Indigenous Peoples, using P3DM, community-based mapping courses, participative methods for SDI construction, PPGIS as a participatory health promotion strategy, and CyberTracker, amongst others.

In 2008, CTA initiated a project entitled “Support the spread of good practice in generating, managing, analysing and communication spatial information”. The project is financially supported by CTA, the International Fund for Agricultural Development (IFAD), IKM Emergent and the Ford Foundation Brazil. The project The project’s overall objective is to increase the capacity of indigenous and other marginalised peoples to engage in effective policy dialogue and advocacy. The output of the initiative will consist in a freely available Multilingual, Modular, Multimedia Training Kit to be used in face to face capacity building events. The kit will be published in English and Spanish. Brazilian-Portuguese and French versions will follow. In the context of this project, CTA will soon launch a Photo Competition. More information on the project and the competition will soon be published on http://pgis.cta.int/

Here are a some other initiatives where members of this list are invited to participate and contribute:

• PPGIS/PGIS Group on LinkedIn (LinkedIn is a social- networking site used by professionals);
• http://www.ppgis.eu/ : a highly specialized Custom Search Engine reflecting knowledge and interests in PGIS/PPGIS practice and science;
• P3DM Where? is an interactive world map based on Google Map technology operated collaboratively by participatory mapping practitioners and serves for locating "participatory 3D Modelling (P3DM) exercises" worldwide;
• A Participatory Translation Initiative has been launched among members of this list last October for translating the subtitles of a video on P3DM. So far translations have been completed by volunteers for the following languages: Arabic, Fijian, Italian, Swahili and Turkish. Other 18 languages are currently being translated. The video with subtitles can be embedded on any blog of website using a code which can be obtained on the video page under the heading “share”;
• “Palawan Endangered” this recently launched initiative consists in a campaign aimed at raising awareness on the in the ongoing and planned mining activities in Palawan (and the whole of the Philippines). The campaign will make use of web 2.0 tools including Google Earth, Google Docs and Video Sharing sites and seeks volunteer contributions. Interested parties should contact palawan.endangered[at]gmail.com;
• On PPgis.Net there is a regularly updated collection of books dealing with PGIS/PPGIS practice. If you would like to recommend additional titles you should write to ppgis[at]ppgis.net
• The PGIS/PPGIS Web Ring is a “ring of websites” sharing common interests in collaborative geospatial information management practice aimed at supporting conservation and development, sustainable natural resource management, customary property rights and peer-to-peer communication. If you run a site dealing with PGIS/PPGIS practice and are interested in joining the ring, please follow this link (for webmasters).

Please note that DGroups, the platform hosting this list, is in the process of being transferred to a more up-to-date environment (Dgroups 2.0). This may cause some temporary disruption in the service. At present all postings are found here . (This may change when this list will be migrated on the new platform).

Selected collections of annotated links are found on http://www.ppgis.net/ You can use all features of this community platform after login (join) by entering your e-mail address and password. In case you forgot your password, you can retrieve it via this link.

The [ppgis] forum and related web site http://www.ppgis.net/ are run and moderated on a voluntary basis with no external financial support. Many thanks to all contributors and moderators. Thanks again for all contributions, messages behind the scene, encouragements and suggestions for improvement. Best regards and best wishes to all of you for a successful and exciting year 2009.

Giacomo Rambaldi
Moderator and List Administrator
http://www.ppgis.net/
http://www.iapad.org/
http://participatorygis.blogspot.com/

African Indigenous Peoples’ Workshop on effective use of ICTs in environmental advocacy

Starting on August 26, 2008 IPACC is holding a 3 day workshop outside of Windhoek Namibia for 40 indigenous African leaders to review case studies of how geo-spatial information technologies can be used by indigenous peoples to express their traditional ecological knowledge to decisions makers for the purposes of securing recognition and rights. The workshop will also look at the role of the internet (Web 2.0) in helping promote good advocacy and communication. The event is co-hosted and presented by the Technical Centre for Agricultural and Rural Cooperation (CTA), the Rainforest Foundation UK, ERMIS Africa, Cybertracker Conservation and Shalin Ry.

Rebecca Moore from Google Earth Outreach, Geneva layer showcase

Rebecca Moore, Head of Google Earth Outreach, demos 2 partner layers at the launch of Google Earth Outreach in Geneva: UNHCR's refugee layer and the Elders' "Every Human Has Rights" layer.

PPGIS.net on LinkedIn to foster community development among pgis/ppgis practitioners

Since DGroups, the platform hosting [ppgis] offers limited opportunities for members to learn about each other and to e.g. get together on a country basis. Considering this limitations and the opportunities offered by emerging web 2.0 applications, I have created a parallel peer2peer space on LinkedIn. LinkedIn is a social- networking site used by professionals.
Joining this new space will allow you to easily identify and establish contact with other [ppgis] members.

The goal of this new space is to help [ppgis] members:

To easily identify members of the [ppgis] network, learn more about them and eventually establish personal contact;
Accelerate careers/business through referrals from [ppgis] Group members;Put a face and a professional curriculum behind a name or an e-mail address

Here’s the link to join the new platform: http://www.linkedin.com/e/gis/131362/56BA201FA389

Below is a short vide explaining how LinkedIn works:

Google Maps and San Diego wildfires

When wildfires broke out in San Diego, broadcast station KPBS used the My Maps feature in Google Maps to easily create and share a map that provided real-time updates on the location of the fires and the status of evacuation shelters. The map received millions of views in just a few days.

Aboriginal Communities in Google Earth

Aboriginal Communities in Google Earth is a virtual globe program that is made freely available from the Google Corporation. The program maps the earth by superimposing images obtained from satellite imagery, aerial photography and GIS over a 3D globe. In an effort to better acquaint people with the Aboriginal communities of Canada, Google Earth has created a placemark file that, when used in conjunction with the Google Earth, allows users to virtually visit these communities.

2008 Indigenous Planning Conference "Leading Change: Blending Indigenous and Western Planning Tools" (1-3 October 2008, Anchorage, Alaska, USA)

The Leading Change conference (1-3 October 2008, Anchorage, Alaska, USA) is sponsored by the American Planning Association’s (APA) Alaska and Hawaii Chapters and the Indigenous Planning Division. The three-day conference will bring together planners, tribal leaders, and community members to share local experiences, planning tools and practices that reflect a commitment to honoring history, cultural identity, tradition, and land tenure. Conference participants will share stories from their own communities organized around general topic areas including land use and natural environment; governance, nation building and leadership; local control, community sustainability, and resilience; culture, education, and community services; economy; and infrastructure, public services, and facilities.

Putting People on the Map: Protecting Confidentiality with Linked Social-Spatial Data

Precise, accurate spatial information linked to social and behavioral data is revolutionizing social science by opening new questions for investigation and improving understanding of human behavior in its environmental context.
At the same time, precise spatial data make it more likely that individuals can be identified, breaching the promise of confidentiality made when the data were collected.
Because norms of science and government agencies favor open access to all scientific data, the tension between the benefits of open access and the risks associated with potential breach of confidentiality pose significant challenges to researchers, research sponsors, scientific institutions, and data archivists. Putting People on the Map finds that several technical approaches for making data available while limiting risk have potential, but none is adequate on its own or in combination. This book offers recommendations for education, training, research, and practice to researchers, professional societies, federal agencies, institutional review boards, and data stewards.

Intangible Cultural Heritage in Fiji - video clip featured at the WSA 2007 award winners ceremony

The World Summit Award (WSA) Awarding Ceremony has been the highlight of the entire WSA process 2005-2007 and a unique ceremony to honour excellence in multimedia and e-Content creation. Up to 40 winning Teams from all over the world were present at the event and were handed out the awards by highest level international dignities.

Difference between Google Maps and Google Earth

The first question many nonprofits ask is: should we use Google Earth or Google Maps? The answer is both. Google "Earth" and "Maps" can be used in parallel to mazimise outreach (via your web site) and usefulness for the user as there are many tools that allow you to enter data once, and then create both custom Google Maps and Google Earth content overlays (KML files).To know more click this link.

Google Earth Outreach

Hundreds of millions of people now use Google Earth and Google Maps to explore the world around them. Google Earth Outreach gives non-profits and public benefit organizations the knowledge and resources needed to perform participatory mapping activites online. Click here to see how other organizations have benefited from Google Earth Outreach, then learn how to create maps and virtual visits to your projects.

An Atlas of Radical Cartography

An Atlas of Radical Cartography published by The Journal of Aesthetics and Protest, makes an important contribution to a growing cultural movement that traverses the boundaries between art, cartography, geography and activism. It pairs writers with artists, architects, designers and collectives to address the role of the map as political agent (rather than neutral document). Ten mapping projects dealing with social and political issues such as migration, incarceration, globalization, housing rights, garbage and energy issues, are complemented by 10 critical essays and dialogues responding to each map. The maps themselves are printed as posters, unbound for leisurely perusal. Among the contributors are artists Trevor Paglen, John Emerson, Ashley Hunt and Pedro Lasch, and essayists Avery Gordon, Heather Rogers, Alejandro De Acosta and Jenny Price.

New Social Cartography Project of the Amazon - Self-cartographing of people and tradicional communities

The associated interests of woodcutters, cattle farmers and mineral enterprises have increased the rate of deforestation and contamination of rivers, and they seriously damage the forms of social organization and the modes of production of indians, marrons and other agents who depend on land and water resources in Amazonia. The actions intented to reduce the pressure on wooden species have been very ineffective. Under the effect of world market, iron and steel production increases the exploitation of coal made from trees. The forests are on the aim of many woodcutting companies and illegal charcoal mines, what increases the destruction of wood resources, and this causes impacts on rivers and igarapés (the small rivers common in the Amazon). Soy cultivation conquers more land and expands quickly according to the dynamics of the commodities market. Those projects have a very intense predatory component and they follow the logics of general price raising of commodities as fresh meat, soy, paper and cellulose, pig iron, cast iron and wood. The growing-up of these businesses is helped, simultaneously, by huge projects directed to cattle breeding, soy cultivation, dendê cultivation (a tree with fruits containing a vegetable oil, which is intensely used in the industry), eucalyptus cultivation, wood exploitation, besides many mining and metalurgical activities, provocating a massive destruction in the Amazon. The State-builded infrastructure in order to support those projects (docks, roads, hydroelectric plants, rocket launch sites) affects in the same way the inhabitants of the area, in addition to this we have the so-called areas of environmental protection that make the access to territories and their resources more restricted. The New Social Cartography Project of the Amazon (PNCSA) – executed by UFAM, UNAMAZ, CNPQ, FORD FOUNDATION and many political organizations representing social agents – proposes to elaborate a series of fascicles which show phenomena and make it possible to produce a critical review of the social, economical and ecological situation in the experience of social agents.
Cartographing research practices and self-cartographing help the affected social agents (marrons, indians, small farmers, settlers, fishermen, artisans, coal miners) to appropriate the results of these techniques and to guide their action of social and environmental changing. The meaning of affronting economical, environmental and political interventions that may interfere harmly on the life conditions, social and physical reproduction shows up the content of many actions.
The elaboration of the fascicles, the discussions and correlated activities (researching, identifying, codifying, mapping, cartographing) correspond to the positions and interests of the agents who formulate these activities and all this results in an appropriation of knowledge by those who produced it.

Project coordinators: Alfredo Wagner Berno de Almeida (Universidade Federal do Amazonas, Manaus, Brazil) and Rosa E. Acevedo Marin (Universidade Federal do Pará, Núcleo de Altos Estudos Amazônicos, Belém, Brazil)