microregion of Brazil

Classification-qualified identity

Record the scheme explicitly: IBGE distinguishes homogeneous microregions from geographic microregions in its regionalization history. [IBGE regional divisions](https://www.ibge.gov.br/geociencias/cartas-e-mapas/redes-geograficas/15778-divisoes-regionais-do-brasil.html?lang=pt-BR).

1. Does the source identify this unit as a microrregião geográfica, a microrregião homogênea or another kind of microregion? definition
2. Which IBGE publication and classification edition establish this instance? provenance

Official name, code and role

Require a sourced name-code pairing and separate evidence for any asserted legal powers; external gazetteer matches remain secondary identifiers.

1. What official Portuguese name and identifier identify this unit in the chosen edition, and which aliases are documented? provenance
2. Does the record concern an IBGE statistical region or a separately constituted legal or service region with a similar name? boundary

Dated municipal roster

Treat municipal membership as a dated, authority-backed roster; preserve the associated mesoregion and federation-unit relationships.

1. Which municipality codes belong to this microregion at the selected territorial reference date? boundary
2. Which mesoregion and federation unit contain it in that same edition, and does every member satisfy those relationships? boundary

Authority-backed geometry

Record the boundary publisher, territorial date, CRS and level of generalization; distinguish a published microregion geometry from an agent-derived union of municipalities.

1. Which boundary release represents this microregion, and what CRS, territorial date and scale or resolution does it declare? provenance
2. Does its geometry agree with the dated municipal roster, and how are discrepancies between releases documented? boundary
3. What area results from the selected geometry and calculation method, and how does it compare with any published area? measurement

Replacement with continued use

IBGE introduced immediate geographic regions to replace microregions, while retaining microregion tabulations for comparison in the 2017 Agricultural Census. Record status per statistical product. [IBGE on retained census geographies](https://agenciadenoticias.ibge.gov.br/agencia-noticias/2012-agencia-de-noticias/noticias/28635-ibge-inclui-recortes-territoriais-mesorregiao-e-microrregiao-nos-dados-do-censo-agro-2017).

1. Which documents establish adoption and replacement of the classification used by this instance? provenance
2. Does the selected statistical release retain microregions, and which territorial edition does it use? action

Evidence-based crosswalk

Require explicit correspondence evidence before mapping a historical microregion to immediate geographic regions or earlier regional units.

1. Which target regions overlap this microregion when both are compared on a compatible municipal or spatial basis? boundary
2. Is the correspondence officially supplied or derived, and what dates, weights and unmatched territory does the method report? provenance

Compatible regional aggregation

Record whether observations are already published for the microregion or derived from municipalities, and preserve indicator-specific aggregation rules.

1. Do the observations and municipal roster use compatible territorial dates, including any municipality creations or boundary changes? boundary
2. Can this indicator be summed, or must a rate, mean or index be recomputed from compatible components? measurement
3. What missing, suppressed or incompatible municipal values prevent a defensible microregion result? action

Historically explicit output

Present microregion results with their classification and territorial basis; require additional evidence for claims about present-day functional regions or governing authority.

1. Does the intended task require historical comparability, a particular published statistical geography or a present-day regional relationship? action
2. What classification edition, territorial date and transformation notes must accompany the map or table to make its extent unambiguous? action

Check these first

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these check these first hold for the sense of microregion of Brazil this model covers, and on what evidence? provenance

Identifiers and schemes

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these identifiers and schemes hold for the sense of microregion of Brazil this model covers, and on what evidence? provenance

Standards and regulation

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these standards and regulation hold for the sense of microregion of Brazil this model covers, and on what evidence? provenance

Real-world use

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these real-world use hold for the sense of microregion of Brazil this model covers, and on what evidence? provenance

Typical measurements

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these typical measurements hold for the sense of microregion of Brazil this model covers, and on what evidence? provenance

Failure modes and hazards

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these failure modes and hazards hold for the sense of microregion of Brazil this model covers, and on what evidence? provenance

Regional variation

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these regional variation hold for the sense of microregion of Brazil this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of microregion of Brazil this model covers, and on what evidence? provenance