Egypt Reservoir Transparency

The MWRI website publishes only static technical specifications for the Aswan High Dam (design capacity, maximum water level) with no operational storage or water level data. No current or historical water volume figures for Lake Nasser are accessible on any official Egyptian government portal. The Nile Forecast Center under MWRI produces forecasting products internally but publishes nothing online. data.gov.eg was unresponsive during evaluation. Researchers have confirmed that satellite altimetry is used precisely because official in-situ data is not publicly released. Despite Egypt holding the most strategic reservoir in the Arab world, its government treats AHD storage data as operationally sensitive.

No machine-readable data format, no REST API, and no downloadable dataset is provided by any official Egyptian source for reservoir storage. The MWRI website is a content management system (WordPress) with informational pages only. NWRC mentions an internal dashboard but it is not publicly accessible. The NBI Dams Database (launched 2024) is the closest structured dataset for Egyptian dam parameters, but it is hosted by an intergovernmental body and contains static inventory data, not operational storage time series. No registration-free open data endpoint of any kind exists for Egyptian reservoir data.

v1.3.0 capacity-weighted: coverage = round(100 × covered_capacity_hm³ / total_national_capacity_hm³). Egypt's total reservoir capacity above 10 hm³ is approximately 162,000 Mm³, dominated utterly by Aswan High Dam / Lake Nasser (~162,000 Mm³ gross, ~90,700 Mm³ live storage — ~98%+ of national capacity). Secondary structures include the Toshka project lakes (~5,500 Mm³ combined), Naga Hammadi Barrage (~665), New Assiut Barrage (~600), Ibrahimia Barrage (~320), Zifta Barrage (~250), Delta Barrage (~180), Esna Barrage and Aswan Old Dam. MWRI publishes zero operational data for Lake Nasser or any of the barrages; the Nile Forecast Center produces internal monitoring but releases nothing. Covered capacity = 0 Mm³. Coverage = round(100 × 0 / 162,000) = 0. Third-party satellite altimetry (Hydroweb, USDA G-REALM, DAHITI) provides Lake Nasser water level series but is international research infrastructure, not Egyptian government transparency.

Academic papers cite MWRI-sourced water level records for Lake Nasser dating back to 1964 (dam impoundment), and annual minimum/maximum levels have appeared in peer-reviewed publications. However, none of these historical series are publicly downloadable from any Egyptian government source. Third-party satellite altimetry via Hydroweb and USDA G-REALM provides water level time series from ~1992 onwards, but this is international research infrastructure, not Egyptian government disclosure. GRDC holds some pre-1965 Nile gauge data but Egyptian contributions to GRDC are sparse and outdated. No machine-readable government-published historical archive exists.

MWRI and HADA (High Aswan Dam Authority) operate continuous 24-hour internal monitoring with real-time data and satellite imagery used for operational decisions, as confirmed by official ministry statements during the 2025 GERD flood events. However, none of this real-time data is published for public access. No periodic bulletin, dashboard, or data release schedule exists publicly for Aswan storage. The Nile Forecast Center produces internal forecasts but no externally published updates. Satellite altimetry proxies (Hydroweb/Sentinel-3) update at 10–27-day intervals but are not government-published data.

MWRI publishes strategic planning documents and policy papers (e.g., NWRP 2037, CWW-2024 priorities paper) that reference its monitoring infrastructure: 200+ surface water gauge stations, 7 meteorological stations operated by HADA on Lake Nasser, and a water quality database covering 435 sites. The existence and general rationale of these networks is acknowledged in public documents. However, no measurement protocol, gauge calibration standard, bathymetric survey methodology for Lake Nasser, or data validation procedure is publicly documented. The scoring methodology for water allocation under the 1959 Egypt-Sudan agreement is described in treaty text but operational measurement details remain unpublished.

MWRI operates a bilingual website with an English-language section (?lang=en) that mirrors most content from the Arabic version, including the Aswan High Dam page and ministry structure. Key strategic documents (e.g., MWRI Priorities CWW-2024, NWRP 2037 summary) are available in English. However, all data that does exist — internal reports, operational data, the EMWIS portal — is in Arabic only. The English web presence is informational, not operational. NBI publications and AQUASTAT are available in English but represent international bodies rather than Egyptian government disclosure.