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São Paulo's city hall has run the CGE since November 1999, after a flood filled the Anhangabaú tunnel that March
Permanent project revision
Revision 2026-08-27-correction-run · effective 2026-08-27
Current revision. This is the snapshot used by the live entity page.
Re-read every CGE page and the SAISP page in full; dropped three sources that are dead or no longer carry the cited content, dated the rest, and attributed the station and gauge counts to the pages that actually state them.
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replace /snapshot/projectFingerprint — Updated projectFingerprint to the current sourced project record.replace /snapshot/claims — Updated claims to the current sourced project record.replace /snapshot/sources — Updated sources to the current sourced project record.The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.
clm-a0533687fbc1798f
quantitative
São Paulo's city hall has run the CGE since November 1999, after a flood filled the Anhangabaú tunnel that March
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quantitative
It reads its own automatic weather stations — 33 of them in 2022, three of those outside the municipality — and rain gauges in 32 subprefeituras alongside the state DAEE radar at Salesópolis and the Alto Tietê telemetry
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then declares an estado de atenção or the higher estado de alerta zone by zone
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The public flood-point map is not sensed — municipal traffic agents on the street report each alagamento and grade it transitável or intransitável, with collection focused on the main roads
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An alert pre-positions crews and warns drivers; nothing the CGE publishes describes it opening a gate or starting a pump
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A live flood map can look like sensing and not be
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so its coverage follows the main roads they patrol — and it records water that has already arrived rather than predicting it
This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.
Awaiting operator and domain-expert review; publication of this revision implies neither.
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src-c822dcc25bb9ba5cOperator page, read in full 2026-08-27. 'foi criado em novembro de 1999, após uma inundação de grande proporção que tomou a região do túnel do Anhangabaú em março do mesmo ano'; the CGE sits in a room in CET's operations centre and passes its readings to Defesa Civil, CET, the fire brigade, the subprefeituras, residents and the press. The page carries no publication or update date, hence date: null. Nothing on it describes the CGE opening a gate, starting a pump or actuating anything.
src-d8b54cc27b6a5120The load-bearing source for the entry's spine, read in full 2026-08-27. 'As informações de alagamento disponibilizadas no website do CGE são fornecidas pelos agentes de campo (trânsito) da Prefeitura de São Paulo'; 'essas informações são coletadas com foco nas principais vias da cidade'; transitável and intransitável are defined verbatim. No date on the page.
src-7f45adc4f1469689Read in full 2026-08-27. The city's own statement of what it owns and what it consumes: the SAISP radar at Salesópolis is 'Operado pela Fundação Centro Tecnológico de Hidráulica (FCTH)' and 'de propriedade do Departamento de Águas e Energia Elétrica (DAEE)'; the telemetric network is 'Distribuída em aproximadamente 300 pontos da bacia do Alto-Tietê'; the automatic weather stations are the CGE's own. No date on the page.
src-aa17620d12b558f4Read in full 2026-08-27. Lists the monitoring inputs, including 'Pluviômetros instalados em 32 subprefeituras', the SAISP radar at Salesópolis as the primary radar, and auxiliary radars. No date on the page.
src-9505e419da34adceCity press page, read in full 2026-08-27; the page shows 'Segunda-feira, 19 de Dezembro de 2022 | Horário: 17:30'. Ties the CGE's creation to the Anhangabaú tunnel flood and gives 'as 33 estações meteorológicas automáticas em diversos pontos da cidade, sendo três fora da capital paulista'. Operator figures, not independently audited.
src-a27a485796b873e4State system, included to mark the boundary, read in full 2026-08-27. It describes the Alto Tietê telemetry network's own operation — a base station polling remote stations over leased lines and VHF radio 'adotando-se uma varredura a cada 10 minutos' for river and reservoir levels and rainfall. It does not state a station count; the '~300 pontos' figure is the CGE's, on its fontes page. No date on the page.
src-084c448ed8fd016dRead in full 2026-08-27; published 07/01/2026 19:11, by Elaine Patrícia Cruz. Shows the zone-by-zone escalation in use: 'Toda a capital paulista está em estado de atenção para chuvas, com exceção de Aricanduva e Itaquera, na zona leste, que estão em situação mais grave, o estado de alerta', and 'O estado de alerta é o mais alto da escala' of the CGE.
src-44427f34a02290baPeer-reviewed work that uses the CGE/CET flood-point feed and probes its gaps. Cited for context only: scielo.br returned HTTP 403 to automated fetch and the UFPR PDF mirror returned unparseable binary, so no figure from it is carried in this entry.