Research
Maps and layers
The network on a live OpenStreetMap globe, with open-data layers for the home region. Each outside layer comes from a registered source and is drawn only after the owner approves it.
- City pages
- 69
- Layers
- 10
- Sources approved
- 2
- Home countries
- 1
Before you begin IDCDC is a peer-to-peer network. It is not a university and acts for no government, party, corporation or faith body.
Outside sources keep their own licences. A listing or a link is not an endorsement.
How this page handles evidence
Every figure carries its measure, year, source and label. Unknown is shown as unknown.
- Verified
- A label: the item matches its primary record, such as the official table or the Crossref entry.
- Secondary source
- A label: the figure comes from a reliable report about the source, not from the source itself.
- To verify
- A label: the item is listed as found and still needs checking against its source.
Sources
Open scholarly records on this subject, from approved indexes. Listed for reference, not yet reviewed.
- Mobina Ferdowsian (2026). Homeland Beyond Geography: Race, Memory, and Belonging in Iranian American and African American Literature. International Journal of Social Sciences and English Literature. DOI 10.55220/2576-683x.v10.1338
- Nasibeh Ahadi (2022). The settlement and integration experiences of recent Iranian immigrants in the suburbs of Vancouver : Surrey, Burnaby, and Coquitlam. University of British Columbia. DOI 10.14288/1.0406603
- Siddartha Aradhya, Finn Hedefalk, Jonas Helgertz et al. (2016). Region of Origin: Settlement Decisions of Turkish and Iranian Immigrants in Sweden, 1968–2001. Population, Space and Place. DOI 10.1002/psp.2031
- DONYA ALINEJAD (2010). Mapping homelands through virtual spaces: transnational embodiment and Iranian diaspora bloggers. Global Networks. DOI 10.1111/j.1471-0374.2010.00306.x
- Sarah Boroujerdi (2023). Mapping Out Race: How Afro-Iranian Migrations Redefine the ‘Aryan Myth’. GLOCAL Conference Proceedings. DOI 10.47298/comela22.5-4
01The network and its layers
Turn layers on and off in the panel. Switch between the globe and the flat map. City points open their pages.
The map needs JavaScript. The layers it shows are listed beside it.
Layers
Cells of the H3 grid at resolution 2, shaded by how many city pages they hold. A count of pages, not of people.
Earthquakes of magnitude 4.5 or more in the last 30 days, in a box around Iran.
First-level provinces of the home countries, each with the licence of its source.
- Awaiting licence review
Urban centres from the GHSL database, as context for the city pages.
- Awaiting licence review
Gridded population density of the home countries, as context. Never a count of the community.
Places on this map (69)
- Sydney, Australia
- Brisbane, Australia
- Melbourne, Australia
- Perth, Australia
- Calgary, Canada
- Edmonton, Canada
- Vancouver, Canada
- Toronto, Canada
- Ottawa, Canada
- Montreal, Canada
- Lyon, France
- Paris, France
- Munich, Germany
- Berlin, Germany
- Hamburg, Germany
- Frankfurt, Germany
- Cologne, Germany
- Amsterdam, Netherlands
- The Hague, Netherlands
- Rotterdam, Netherlands
- Malmö, Sweden
- Stockholm, Sweden
- Uppsala, Sweden
- Gothenburg, Sweden
- Ankara, Türkiye
- Denizli, Türkiye
- Istanbul, Türkiye
- Van, Türkiye
- Abu Dhabi, United Arab Emirates
- Dubai, United Arab Emirates
- Sharjah, United Arab Emirates
- London, United Kingdom
- Manchester, United Kingdom
- Birmingham, United Kingdom
- Glasgow, United Kingdom
- Los Angeles, United States
- Orange County, United States
- San Francisco Bay Area, United States
- Washington DC area, United States
- Atlanta, United States
- Chicago, United States
- New York area, United States
- Houston, United States
- Dallas, United States
- Seattle, United States
- Yerevan, Armenia
- Vienna, Austria
- Brussels, Belgium
- Copenhagen, Denmark
- Mumbai, India
- Pune, India
- Hyderabad, India
- Jerusalem, Israel
- Holon and Bat Yam, Israel
- Rome, Italy
- Milan, Italy
- Turin, Italy
- Tokyo, Japan
- Kuala Lumpur, Malaysia
- Oslo, Norway
- Johannesburg, South Africa
- Cape Town, South Africa
- Geneva, Switzerland
- Zurich, Switzerland
- São Paulo, Brazil
- Batumi, Georgia
- Tbilisi, Georgia
- Lamu and Mombasa, Kenya
- Zanzibar, Tanzania
Map: OpenFreeMap, OpenMapTiles, data © OpenStreetMap contributors (ODbL). Boundaries: Natural Earth. Places: the platform’s own pages.
02Latest items
Each approved layer lists its latest items here too, for every reader.
| Date | Place | Magnitude |
|---|---|---|
| 2026-10-16 | 70 km NNE of Mīnāb, Iran | M4.5 |
| Country | Units | Licence |
|---|---|---|
| IRN | 32 provinces | Open Data Commons Open Database License 1.0 |
03The layer register
| Layer | Source | Licence | Status |
|---|---|---|---|
| Recent earthquakes | USGS earthquake catalogue (FDSN event service) | Public domain (U.S. Government work); credit requested | Shown |
| Current disasters | ReliefWeb disasters API | Metadata reusable with credit; each linked report under its own source’s terms (to verify) | Awaiting licence review |
| Provinces | geoBoundaries open administrative boundaries (gbOpen) | Per country, from the geoBoundaries record: Iran ODbL 1.0 (OpenStreetMap, share-alike), Türkiye CC BY-SA 2.0 (OpenStreetMap), Iraq CC0 1.0, Syria CC BY 3.0 IGO (UN OCHA). Share-alike terms need review | Shown |
| Urban centres | GHSL Urban Centre Database | CC BY 4.0 (European Commission, Joint Research Centre), to verify for the release used | Awaiting licence review |
| Population density | WorldPop gridded population | CC BY 4.0 | Awaiting licence review |
04How a source reaches a map
Process
From source to published figure
How a number reaches a page, keeping its measure, year, source and label.
7 steps
Run log
01 · Research
Source found
A statistics office, an international body or a study that counts the community.
02 · Sources register
Registered
The source is entered with its licence, attribution and use.
03 · Owner
Source approved
The owner approves the source in the register.
04 · Research
Figure recorded
Value, measure, year, source and label: verified, secondary or to verify.
05 · Research
Verification
Checked against the source; open items go to the verification queue.
06 · Pages
Shown with its label
Every figure appears with its measure and source.
07 · Research
Correction
A reported error reopens the figure; the change is recorded.
The platform’s rules for figures and outside data.
Cite this page
- APA
Iranian Diaspora Cooperation & Development Council. (2026). Maps and layers. iranians.global. https://iranians.global/research/maps/
- Chicago
Iranian Diaspora Cooperation & Development Council. 2026. “Maps and Layers.” iranians.global. https://iranians.global/research/maps/.
- BibTeX
@misc{idcdc2026_research_maps, author = {{Iranian Diaspora Cooperation \& Development Council}}, year = {2026}, note = {Licence: CC BY 4.0}, title = {Maps and layers}, url = {https://iranians.global/research/maps/}, howpublished = {https://iranians.global/research/maps/}, }- RIS
TY - ELEC AU - Iranian Diaspora Cooperation & Development Council DA - 2026/// PY - 2026 ID - idcdc2026_research_m N1 - Licence: CC BY 4.0 TI - Maps and layers UR - https://iranians.global/research/maps/ ER -
05Research and sources
Recent and relevant work on this page’s subject, from approved open scholarly sources. Metadata and links only. Titles stay as published. Not yet reviewed.
-
Mobina Ferdowsian · 2026 · International Journal of Social Sciences and English Literature
ArticleOpenAlexOpenAIREOpen access
-
Nasibeh Ahadi · 2022 · University of British Columbia
ArticleDataCite
-
Region of Origin: Settlement Decisions of Turkish and Iranian Immigrants in Sweden, 1968–2001
Siddartha Aradhya, Finn Hedefalk, Jonas Helgertz et al. · 2016 · Population, Space and Place
ArticleCrossref
-
Mapping homelands through virtual spaces: transnational embodiment and Iranian diaspora bloggers
DONYA ALINEJAD · 2010 · Global Networks
ArticleCrossref
-
Mapping Out Race: How Afro-Iranian Migrations Redefine the ‘Aryan Myth’
Sarah Boroujerdi · 2023 · GLOCAL Conference Proceedings
ArticleOpenAIRE
-
Vizheh M, Zurynski Y, Braithwaite J et al. · 2023 · Health Place
ArticleEurope PMC
Sources, licences and fetch dates: Crossref (Metadata facts, any use; abstracts may be publisher-owned and are never shown), 2026-10-23; DataCite (CC0 1.0 (DataCite metadata)), 2026-10-23; Europe PMC (Metadata reusable; full text under each article’s licence), 2026-10-23; OpenAIRE (CC BY 4.0 (OpenAIRE Graph)), 2026-10-23; OpenAlex (CC0-1.0 data; metered API (free key)), 2026-10-23.