1. Introduction
Flooding ranks among the most frequent and damaging hazards in sub-Saharan Africa, with climate-driven hydrometeorological extremes disproportionately affecting the region [
1,
2]. Rapid urbanization, weak infrastructure, and informal settlement expansion along riverbanks and floodplains have sharply heightened urban vulnerability [
3,
4,
5]. In Nigeria, the 2022 floods displaced over 1.4 million people and caused hundreds of deaths [
6,
7]; the 2024 Maiduguri flood, triggered partly by Alau Dam breach, displaced hundreds of thousands, exposed critical gaps in early warning procedures and drainage systems, and compounded risks from infrastructure decay, climate extremes, and social fragility [
2,
8].
Flooding arises from complex climatic, hydrological, and socio-spatial interactions, and is exacerbated by chronic data gaps and failures to integrate scientific tools into planning and emergency responses [
9,
10,
11]. Recent advances in Earth Observation (EO), through high-resolution imagery, radar-based flood detection, and cloud analytics, enable near-real-time monitoring of rainfall extremes, land-use change, and surface-water dynamics across scales [
12,
13,
14,
15]. Globally, EO supports disaster-risk reduction and adaptation through rapid mapping, impact assessment, and anticipatory warnings adopted by governments and humanitarian agencies [
16,
17]. However, translation of these capabilities into actionable, locally embedded knowledge remains uneven in Africa due to limited technical capacity, fragmented data governance, and digital infrastructure deficits [
18,
19,
20].
Open-access platforms (NASA Earthdata, Copernicus, Digital Earth Africa) have advanced EO democratization [
21,
22], yet utilization is specialist-dominated, excluding humanitarian actors, legal practitioners, journalists, and communities central to flood governance [
18,
23]. Engagement is concentrated in academia and government; community-based actors and civil society represent only a small fraction [
18,
19,
24]. This gap is epistemic: specialized terminology, complex formats, and absence of contextual translation reinforce hierarchies that marginalize local and indigenous knowledge [
25].
In most African states including Nigeria, expert–non-expert EO literacy disparities create dependence on external interpretations and weaken local flood-risk ownership [
26,
27,
28]. It is generally observed that limited training materials in Hausa, Yoruba, and Igbo, combined with English-dominant interfaces, compound barriers and sustain EO as an elite domain [
29,
30].
Urban flooding in Africa intertwines informality, fragmented governance, and large-scale environmental teleconnections [
31]. Informal settlements, housing over half the urban population, occupy flood-prone lowlands lacking drainage [
32,
33]. In Maiduguri, 2024 Alau Dam overtopping inundated informal districts and Internally Displaced Persons (IDP) camps [
34,
35,
36]; in Hadejia, upstream irrigation, sedimentation, and altered regimes cause recurrent agricultural losses [
10,
37,
38]. These impacts embed broader teleconnections (climatic anomalies, dam releases, evapotranspiration) that shape downstream intensity [
39]. Conventional communication rarely illustrates these linkages, leaving actors uninformed. EO (multispectral and radar imagery) visualizes hidden drivers, yet remains inaccessible to non-experts.
Demystifying EO enables local actors to connect upstream decisions and distant anomalies to immediate flooding, strengthening adaptation and transboundary solidarity. This aligns with socio-hydrological paradigms viewing flood risk as co-produced by human–hydrological interactions [
40]. Community interpretation of EO-based teleconnections situates governance in a relational framework. Demystification aligns with knowledge-translation theory, emphasizing iterative engagement to make information comprehensible, culturally resonant, and actionable [
41,
42,
43]. Within flood governance, it reframes EO outputs into narratives and linguistic structures for diverse stakeholders. Participatory, co-designed EO insights strengthen resilience [
17,
38], yet few studies integrate linguistic inclusivity or legal empowerment [
44,
45]. This research addresses that gap via local language-based participatory co-creation in Maiduguri and Hadejia. Drawing on co-production, resilience governance, and transdisciplinary practice [
39,
46], it dismantles epistemic and linguistic barriers. By uniting legal, humanitarian, civil society, and geospatial actors, it repositions EO as lived, collectively owned knowledge.
This aligns with the Sendai Framework [
47] and Sustainable Development Goals (SDGs) 11 and 13 by embedding EO in community-driven adaptation. Despite growing participatory EO recognition, challenges persist, namely: limited non-expert literacy evaluation [
23,
48], scarce teleconnection awareness [
49,
50,
51], linguistic exclusion [
52,
53], and weak institutional integration. This study operationalizes demystification as participatory, cross-sectoral, and bilingual, to enhance literacy and equitable resilience. Focusing on Maiduguri and Hadejia, it offers comparative insights into EO translation. The study seeks to address the following research questions: (i) What are the differences in Earth Observation (EO) literacy and familiarity levels between expert and non-expert groups in flood-prone African informal cities? (ii) How can indigenous language-based participatory workshops be designed and implemented to demystify EO tools for non-experts in urban flood contexts? (iii) To what extent do participatory demystification workshops improve EO literacy among non-experts, and how do these interventions influence participants’ willingness and confidence to apply EO data in practical flood-related activities, such as early warning or advocacy? (iv) What are the implications of EO demystification through participatory and indigenous language-based approaches for reducing flood vulnerability in African informal settlements? (v) What policy pathways can facilitate the integration of non-expert EO utilization into disaster risk reduction (DRR) frameworks?
The study advances conceptual discourse on EO democratization, provides empirical evidence from the Lake Chad Basin, and bridges science–policy–society interfaces. Transformative governance requires epistemic inclusion: translating EO into accessible, culturally embedded knowledge enables robust, just adaptive responses. Addressing flood vulnerability in African cities demands an interdisciplinary foundation integrating technology, society, and governance. This study draws on four interrelated frameworks: (i) EO democratization and demystification, (ii) teleconnections and socio-hydrological linkages, (iii) resilience and co-production in disaster risk reduction, and (iv) knowledge translation for bridging science, policy, and community practice. Together, they argue that EO must evolve from a technocratic expert tool to a multilingual, participatory socio-technical commons.
EO has transformed governance by providing spatially explicit insights into land use, hydrology, and climate [
54,
55,
56,
57]. In Africa, however, it remains confined to elites [
23,
58]. Demystification makes EO intelligible, contextual, and participatory by simplifying language, translating outputs, and embedding interpretation in social and linguistic realities. Drawing from citizen science and participatory remote sensing, it asserts that democratizing data enhances legitimacy, uptake, and sustainability.
Participatory GIS decentralizes knowledge production by blending local and scientific cartographies [
59]. Demystified EO operationalizes this by equipping non-scientists to interpret and apply satellite data, shifting from dissemination to co-creation. It challenges technocratic data ownership [
60], redefining value as collective usability and interpretive equity. Demystification is both process (training, translation, dialogue) and outcome (empowered stakeholders using EO independently). It aligns with technological citizenship, granting agency to reinterpret technology socio-politically.
Flood hazards transcend local boundaries, shaped by teleconnected systems in form of large-scale climate and land-use patterns linking distant regions [
31]. Teleconnections transmit risk via hydrological feedbacks, rainfall anomalies, irrigation, and degradation. Upstream deforestation or dam releases can intensify downstream flooding [
61,
62]. In the Hadejia–Jama’are Basin, Kano irrigation alters water balance and sedimentation, affecting Hadejia and Nguru [
49]. Regional oscillations (El-Niño Southern Oscillation (ENSO), West African Monsoon) modulate rainfall, amplifying exposure [
63]. Conventional assessments focus locally, neglecting linkages and yielding fragmented adaptation [
64]. EO visualizes transboundary relationships, yet remains opaque to non-experts. Demystifying EO enables actors to connect upstream decisions and distant anomalies to local flooding, strengthening adaptation and solidarity. It aligns with socio-hydrology, conceptualizing risk as co-produced by human–hydrological interactions [
65]. Community interpretation situates governance relationally.
Resilience thinking frames how social–ecological systems absorb shocks and reorganize [
66]. Urban flood resilience depends on learning, adaptation, and self-organization [
67]. Participatory EO demystification builds cognitive resilience (interpreting signals) and social resilience (trust and networks). It adopts transformative resilience, where learning drives change [
68]. Demystification converts passive recipients into active co-producers [
69]. Co-production involves iterative interaction between producers and users for relevance, legitimacy, and credibility [
70]. EO demystification bridges epistemic divides, hybridizing scientific data with indigenous markers. In informal cities with plural governance, this is crucial. Linguistic inclusivity (local languages) expands participation beyond English elites, making language a resilience medium.
Knowledge translation (KT) explains moving knowledge from science to practice [
70]. Adapted from health to environmental governance, it closes the “know–do” gap [
71]. EO demystification is a translation chain: synthesis (simplifying data), dissemination (local language workshops/maps), exchange (dialogue), and application (preparedness, advocacy). KT is iterative, resonating with pragmatism: knowledge’s value lies in problem-solving [
72]. These frameworks converge in an integrative socio-technical model (
Figure 1): raw EO data enter the Demystification Bridge, simplifying spectral/radar information to lower barriers. The model fosters literacy and competence among diverse stakeholders, enabling confident engagement with hazard evidence. Reframing EO as social prioritizes learning, linguistic accessibility, and feedback, confronting knowledge-production asymmetries. Non-experts become co-interpreters, aligning with post-normal science (where decisions of vulnerability cannot wait for perfect scientific certainty) and extended peer communities [
73,
74]. This enhances resilience in teleconnection-affected cities and offers a replicable model for evidence-based adaptation.
The framework contributes three ways: (i) bridging scales by linking teleconnections to local realities via accessible EO; (ii) bridging epistemologies by merging scientific and indigenous knowledge through co-production and translation, advancing decolonial resilience [
60,
75]; (iii) bridging sectors by connecting EO to legal, humanitarian, and governance domains, enabling litigation, planning, and reform. EO demystification emerges as transformative intervention and social innovation, grounding the study’s methodology and offering equitable adaptation pathways across the Global South.
2. Research Methods
2.1. Study Area
This study adopted a transdisciplinary mixed-methods design underpinned by pragmatism as the guiding philosophical paradigm. Pragmatism emphasizes inquiry focused on practical outcomes, rather than adherence to any single epistemological stance [
72,
76]. This orientation aligns with the study’s dual ambition: to generate actionable knowledge for flood-risk governance and to empirically test the demystification of Earth Observation (EO) among non-expert stakeholders in African cities. The research integrated quantitative and qualitative techniques within a convergent design. Quantitative surveys measured changes in EO literacy, while qualitative participatory workshops generated contextual insights and translated learning materials. Both strands were implemented concurrently and integrated during interpretation to ensure triangulation and policy relevance.
Maiduguri, the capital of Borno State, is situated at 11°50′ N, 13°09′ E in northeastern Nigeria, at an elevation of approximately 320–350 m above sea level, within the shrinking Lake Chad Basin and the downstream reaches of the Komadugu Yobe river system (
Figure 2). This Sahelian location experiences a hot semi-arid climate (Köppen BSh), characterized by a long dry season (October–May) with virtually no rainfall and a short, intense wet season (June–September) delivering 500–650 mm annually, often concentrated in high-intensity convective storms. The city’s estimated population of 899,000 experiences mean maximum temperatures exceeding 40 °C from March to June, while the Harmattan winds bring dust haze and low humidity in the dry season. The city’s proximity to the receding Lake Chad (now less than 10% of its 1960s extent) and the Alau Dam upstream has amplified flood vulnerability, particularly when heavy rains coincide with dam releases or structural failures, as seen in the September 2024 flooding that displaced over 400,000 residents [
36]. Conflict since 2009 has further weakened environmental governance, with informal settlements expanding onto floodplains and drainage channels, creating a high-risk urban–hydrological interface under conditions of protracted insecurity and humanitarian crisis.
Hadejia, located in Jigawa State at 12°27′ N, 10°02′ E and approximately 300–360 m above sea level, lies at the confluence of the Hadejia and Jama’are rivers within the extensive Hadejia-Jama’are-Komadugu Yobe Basin, forming part of the Chad Basin endorheic system. It has a population of 110, 753 and also falls within the Sudanian-Sahelian climatic zone, receiving 600–800 mm of rainfall annually during a slightly longer wet season (May–October), with peak precipitation in August. Temperatures range from 35 to 42 °C in the hot season (April–June) to cooler Harmattan conditions (December–February). The historic Hadejia-Nguru wetlands downstream once acted as natural flood regulators, but upstream dams (Tiga and Challawa Gorge) and large-scale irrigation schemes since the 1970s have transformed the natural flood pulse into managed releases that trigger annual inundation of urban and peri-urban areas [
77]. Both cities share Hausa linguistic dominance, informal urbanism, and fragmented governance, yet their contrasting locational and climatic attributes (Maiduguri’s extreme aridity and conflict-amplified risk versus Hadejia’s agro-engineered floodplain dynamics) provide complementary contexts for examining EO demystification across distinct teleconnection regimes in northern Nigeria.
2.2. Research Process Overview
The research was conducted in three sequential phases (
Table 1) starting with a Rapid Evidence Assessment (REA) which synthesized relevant peer-reviewed and grey literature related to EO democratization, participatory mapping, and flood governance in African and global contexts, establishing a robust theoretical foundation for demystification and teleconnection analysis. The survey design was developed through a rigorous, iterative process to ensure content validity and cultural appropriateness for measuring EO literacy and related constructs using native language. An initial pool of items was drafted based on established EO education frameworks, disaster risk perception scales, and KT literature, covering four domains: familiarity with EO concepts, perceived usefulness, access barriers, and willingness to apply EO data. The items were reviewed by a panel of five experts (three geospatial researchers and two local flood practitioners) for relevance, clarity, and cultural fit; most items were retained after revisions, with wording adjusted for Hausa equivalence through forward-backward translation by bilingual linguists. Face validity was confirmed via cognitive interviews with eight pilot participants from similar socio-cultural backgrounds, resulting in minor rephrasing for comprehension. Cronbach’s alpha was calculated on pilot data (α = 0.87 overall; subscales 0.82–0.91), confirming strong internal consistency. The final design used a 10-point Likert scale and was administered in paired pre-/post-design during the workshops: participants completed identical Q1 (pre) and Q2 (post) surveys immediately before and after the intervention, enabling direct within-subject comparison of changes in EO literacy and willingness.
This is followed by Stakeholder Engagement and Data Collection. Local language participatory workshops were deployed in Maiduguri and Hadejia, incorporating pre- and post-training surveys, live EO demonstrations, breakout co-creation sessions, and structured interactions with diverse actors. Lawyers, humanitarian workers, community representatives, and technical experts generated both quantitative responses and rich qualitative insights.
Finally, data analysis and integration combined statistical testing (one-way Analysis of Variance (ANOVA) and Tukey’s Honest Significant Difference (HSD) post hoc tests) to evaluate changes in EO literacy and willingness to adopt demystified tools. With respect to qualitative analysis, transcripts were analyzed using reflexive thematic analysis. Coding proceeded inductively, generating categories such as barriers to EO use, trust and ownership, and local language learning. Two researchers independently coded samples based on consensus approach to ensure reliability (Cohen’s κ = 0.82). Triangulation occurred across data types: survey results, discussion excerpts, and visual artifacts (maps/posters). Integration followed a convergent matrix linking quantitative trends with qualitative narratives.
The REA followed best-practice protocols for rapid reviews [
78,
79]. Searches were conducted across Scopus, Web of Science, and Google Scholar using Boolean strings such as “Earth Observation” AND “participation” AND “Africa” AND “Informal Cities” and “teleconnections” AND “flood management.” Out of 150 records screened, 82 met inclusion criteria (peer-reviewed, relevance). The review revealed three persistent gaps: (i) over-reliance on technical EO approaches with minimal social integration; (ii) lack of mechanisms for non-expert participation; and (iii) the absence of local language-based or culturally adaptive EO communication frameworks. These insights informed the participatory curriculum and evaluation instruments used in subsequent phases.
2.3. Stakeholder Sampling and Recruitment
A directed snowball sampling strategy identified 50 participants representing diverse flood-management actors. Initial contacts were drawn from the National Emergency Management Agency (NEMA), Lake Chad Basin Commission, CSOs, NGOs, and local associations, followed by referrals to less visible stakeholders such as women’s cooperatives (
Table 2).
This ensured saturation for thematic depth, with GESI lens prioritizing marginalized voices to address power imbalances in EO access. The sample size (n = 50) balanced feasibility with diversity, achieving 90% thematic saturation in participatory studies. The 90% thematic saturation refers to the point at which additional data collection (workshop transcripts, open-ended survey responses, and co-produced outputs) yielded no new themes or significant insights beyond the five already identified (accessibility, language translation, empowerment, trust & ownership, advocacy/policy linkages). Saturation was assessed iteratively during the reflexive thematic analysis: after independently coding the first 60% of the dataset (approximately 30 participants’ contributions), the two coders compared emerging themes and found that the remaining 40% produced only minor refinements or repetitions of existing codes, with no novel categories arising, indicating that thematic sufficiency had been reached. The 90% saturation was operationalized as a conservative estimate of completeness (i.e., 90% of the final thematic structure was stable after coding 60% of the data). This criterion-driven approach facilitated non-expert inclusion, demystifying EO by centering those typically excluded.
2.4. Participatory Local Language-Based Workshops
Two intensive local language-based workshops were organized one in Maiduguri and the other in Hadejia. Each lasted a full day and comprised three iterative modules (
Figure 3). The workshops were facilitated by a team of three bilingual researchers (two geospatial experts fluent in the local language, and one local community liaison with prior experience in flood-affected areas), ensuring consistent delivery and cultural sensitivity across both the Maiduguri and Hadejia sessions. Language protocol followed a structured approach: core content was presented in English with simultaneous Hausa interpretation by trained facilitators; key technical terms were co-translated live with participant input; and all slides and annotations were provided in parallel Hausa–English versions. No formal back-translation was required as Hausa equivalents were iteratively validated during pilot testing and participant feedback loops. Participants received printed bilingual infographics, quick-reference glossaries of EO terms, and pre-loaded tablets (Garmin and low-cost Android devices) with the Copernicus Browser app; while 65% reported no prior tablet experience, facilitators provided 15–20 min of guided onboarding (basic touch navigation and app interface), resulting in 88% independent task completion by the end of Module 2, demonstrating effective hands-on support for novices.
Module 1, “Introduction to EO and Teleconnections”, introduced participants to the fundamentals of EO through accessible, visually rich infographics that explained satellite orbits, the advantages of Synthetic Aperture Radar (SAR) imagery, and real-world examples of climate teleconnections, such as the influence of ENSO on Sahel rainfall patterns. Using localized analogies and animated demonstrations of flood mapping using Copernicus Sentinel-1 data, facilitators demystified complex concepts, enabling participants (many encountering satellite imagery for the first time) to grasp how distant upstream activities can trigger downstream flooding in their communities. This helps in appreciating teleconnections triggers and falls within the synthesis stage of KT.
Module 2, “Hands-On Flood Detection”, shifted to practical application, with participants using tablets preloaded with the Copernicus Browser to locate pre- and post-flood Sentinel satellite images of their own neighborhoods. Guided step-by-step, they learned to identify water extent, vegetation loss, and land-use changes while overlaying indigenous flood indicators such as kalar kogin/rafi (river color changes) and kurmi (marsh zones) directly onto the satellite images, resulting in hybrid community maps that blended scientific data with local knowledge.
Module 3, “Co-Creation, Storytelling, and Evaluation”, empowered participants to translate their newly acquired EO insights into actionable outputs, including advocacy posters, potential legal exhibits, and community action plans. Facilitators ensured precise translation of technical terms into Hausa, fostering inclusive dialogue. The session concluded with pre- and post-training surveys that measured significant gains in EO literacy, confidence, and expressed willingness to integrate demystified satellite tools into everyday disaster management, legal advocacy, and environmental governance practices.
2.5. Survey Instruments and Data Analysis
The study employed paired pre- and post-training surveys (Q1 and Q2) comprising identical items that measured self-reported EO familiarity, perceived relevance, access barriers, and willingness to adopt EO tools on a 10-point Likert scale (1 = no knowledge/no willingness, 10 = expert/high willingness), complemented by open-ended questions to capture qualitative insights. Data collection combined quantitative responses captured via Google Forms and exported for analysis, qualitative data from audio-recorded group discussions transcribed and thematically coded, and spatial data from participant-annotated EO maps that were subsequently digitized and archived. Quantitative analysis (
Table 3) involved descriptive statistics to establish baseline EO literacy levels, followed by inferential testing using one-way ANOVA to detect significant differences in pre- and post-training mean scores across stakeholder categories, with Tukey HSD post hoc tests (α = 0.05) identifying specific group differences and partial eta-squared (η
2) effect sizes quantifying the magnitude of knowledge and confidence gains achieved through the demystification process.
The rationale for one-way ANOVA was to test for statistically significant differences in baseline EO familiarity scores across the five stakeholder groups (technical experts, lawyers, humanitarian workers, civil-society actors, and community representatives), as it is the appropriate parametric test for comparing means among three or more independent groups when the data meet normality and homogeneity assumptions. In addition, Tukey HSD post hoc tests were subsequently applied to identify which specific pairwise group differences drove the overall significance. This stepwise approach allowed precise isolation of the “high concentration of EO literacy among technical experts” without inflating false positives. The combination ensured transparent, robust inference about pre-intervention disparities, directly supporting the study’s aim to quantify knowledge gaps before demystification.
With respect to qualitative analysis, data from audio-recorded local language workshop discussions, open-ended survey responses, co-produced maps/annotations, and participant narratives were analyzed using reflexive thematic analysis to triangulate stakeholder perspectives, co-produced solutions, and teleconnection narratives, ensuring a transdisciplinary interpretation that bridges scientific rigor with community-driven knowledge. Two researchers independently conducted initial inductive coding of the full dataset, generating 47 preliminary codes (e.g., “technical jargon as barrier”, “Hausa as empowerment tool”, “maps as court evidence”). These codes were iteratively refined through comparison, peer debriefing, and member-checking, collapsing into five overarching themes (Accessibility, Language Translation, Empowerment, Trust & Ownership, and Advocacy/Policy Linkages) each with clear definitions, sub-themes, illustrative quotes, and interpretive explanations documented in the coding framework (
Table 4). The final thematic matrix explicitly linked raw evidence to interpretive claims allowing transparent validation against quantitative literacy gains and cross-verification with co-created outputs. This rigorous, reflexive process ensured that themes were systematically derived, reliable, and directly supported the study’s conclusions on how bilingual demystification reduces epistemic barriers, fosters agency, and enables practical EO application in flood resilience.
5. Conclusions
This study has demonstrated that demystifying EO through participatory co-creation and translation using local languages can significantly enhance flood resilience and local environmental governance in African informal cities. By engaging non-experts in hands-on EO learning, visualization, and interpretation using both Hausa and English, the research reframed EO from a purely technical domain into an inclusive social process of knowledge co-production. Participants in Maiduguri and Hadejia, representing diverse stakeholder groups, gained substantial increases in EO literacy and interpretive confidence, showing that even complex satellite data can become accessible when mediated through culturally and linguistically grounded approaches.
The results confirm that data democratization is not solely about open access but also about open understanding. Communities that once viewed EO as distant or elite were able to connect global teleconnections and satellite imagery to their lived experiences of local flooding. In Maiduguri, humanitarian actors used EO maps to identify safer relocation areas, while in Hadejia, farmers and legal advocates applied the same tools to trace irrigation-related flood risks and negotiate water governance. Such applications show that when knowledge is co-created rather than transferred, it gains legitimacy, credibility, and practical relevance for decision-making.
The local language-based engagement process proved particularly transformative. Translating EO concepts into Hausa fostered inclusivity, encouraged gender-balanced participation, and enabled participants to articulate scientific ideas using familiar terms and proverbs. This linguistic integration represents a small but powerful act of epistemic decolonization, returning interpretive authority to local communities and validating indigenous expressions of environmental knowledge. It also demonstrated that language itself can be a tool of empowerment and a bridge between scientific and social resilience.
Beyond local empowerment, the study’s implications extend to policy and governance. It calls for institutionalizing EO literacy through community-based learning hubs, integrating multilingual communication in national early warning systems, and recognizing EO-derived evidence in environmental justice frameworks. These measures would help shift EO governance from a centralized technocracy toward a more participatory, decentralized model that aligns with the principles of equity and sustainability.
Finally, this research redefines EO as a social technology—one that connects observation with cooperation and interpretation with action. It shows that resilience in African cities will depend not only on technological innovation, but on democratizing the capacity to understand and use it. When communities can “see the sky in their own language,” they move from being the subjects of observation to partners in adaptation and policy transformation. Demystified EO, therefore, offers a pathway toward decolonizing environmental science and realizing the inclusive, locally grounded resilience envisioned in the Sustainable Development Goals.