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Earth Observation for Africa: Insights from the RCMRD International Conference #RIC2024

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Author: Victor Eseme Omoit

TAHMO Weather station at RCMRD

As we edge closer to COP29 in Baku, Azerbaijan, this year, discussions about earth observation and its role in sustainable development are growing louder. At the heart of these conversations was the RCMRD International Conference (RIC) 2024, themed Earth, Our Only Home. With experts from various fields coming together, the focus was not just on technology, but on how it can drive real-world impact, especially in addressing Africa’s environmental and developmental challenges.

Coming off the high of celebrating TAHMO’s 10th anniversary this past June, I was motivated to join the RCMRD International Conference (RIC) 2024, energized by the endless possibilities for TAHMO’s next decade. As TAHMO’s country coordinator for Kenya, I am well aware of our mission to build a dense network of weather stations across sub-Saharan Africa and how this has contributed to improving climate data collection, particularly in rural and remote areas where there are significant weather data gaps. This data is crucial for weather forecasting, agricultural planning, and managing water resources, which directly impact livelihoods and climate adaptation efforts across the African continent.

At TAHMO, we champion innovation and collaboration, and attending RIC2024 felt like another step forward on our journey. With a decade of success behind us, I felt an urgency to explore new opportunities that will strengthen the foundation for TAHMO’s next phase of impact. This conference couldn’t have come at a better time, aligning seamlessly with our shared mission of leveraging data to confront Africa’s most pressing climate and environmental challenges.

One of the key issues raised during the conference was the need to customize data formats to suit different regions. At the moment, much of the data generated is region-specific, which limits access for those outside the operational zones. This raises the question: How can we extend the reach of this data so that other regions can also benefit? By allowing broader access, data can be used to simulate and analyze different environmental and agricultural scenarios, potentially driving innovation across the continent.

A significant merger highlighted during the conference is the coming together of Opesa and BIOPAMA under the Regional Centre of Excellence for Eastern and Southern Africa (RCoE-ESA). This initiative aims to ensure that Africa’s forests, biodiversity, and coastal landscapes are managed sustainably. Their focus areas include Information Management, Scientific Support, Capacity Building, and Global Engagement.

Earth, our only home.

As of 2022 the world’s population stood at 7.9 billion people, along with diverse wildlife, forests, and countless natural resources, making it very sensitive to disruptions. However, what have we done with it? In recent decades, we’ve witnessed widespread destruction, pushing the Earth in a dangerous direction. If this continues, it will become increasingly difficult, if not impossible, to reverse the damage.

At this conference, I met several conservationists from the Mara region, where TAHMO installed 17 new Weather stations earlier this year, adding to the existing eight. It was encouraging to see their dedication to learning how best to care for our planet. The fact that people traveled from far and wide to gain insights and discuss the next best course of action is a clear sign that we can no longer afford to delay. The urgency to protect the Earth is stronger than ever.

The coming together of organizations such as RCMRD, RCoE-ESA, GEOGLAM, JECAM, TAHMO, the Uganda Meteorological Authority (UNMA), the Kenyan government and many more to discuss how best to save our world is a clear indication that Earth truly is our only home.

Shifting from Technology to Action

Dr. Emmanuel Nkurunziza delivering his opening speech.

In his opening remarks, Dr. Emmanuel Nkurunziza, RCMRD’s Director General, emphasized that the focus should not only be on technology itself but on what it can do for people. “The idea is not to sit in offices and be pleased with what we are doing, but to focus on what people can do with the technology we provide,” he remarked, highlighting the importance of human-centered solutions.

Mrs. Dorcas Okalany, a member of the RCMRD governing council, reiterated this by urging collective responsibility. She pointed out that accurate and timely data is crucial for achieving several Sustainable Development Goals (SDGs), particularly Climate Action, Life on Land, and Sustainable Cities. She also stressed the urgency of decisive action, noting, “The time to act is now.” With Africa’s population growing rapidly, adaptation and innovation will be key to securing a sustainable future.

Dr. Rachel Nyamai, Member of Parliament for Kitui South, made an observation regarding the recent floods that affected Kenya. She emphasized that the timing of the conference couldn’t have been better, as sustained innovation is crucial for managing Africa’s resources. In her speech, she stressed the importance of open data and data sharing in building resilience, particularly in the face of climate disasters. Nyamai’s remarks underscored how better access to earth observation data can assist in forecasting and mitigating future events like the floods, making a compelling case for continued investment in technological infrastructure.

Judith Nalule Nabakooba, Uganda’s Minister of Land, echoed these sentiments, delivering greetings from President Museveni. She emphasized the importance of prioritizing sustainability in every aspect of life. “Our planet, with its abundant resources, is not only our home but also our responsibility,” she stated, calling for bolder actions and collaboration to safeguard the earth for future generations.

Data Access and Infrastructure Challenges

During the plenary session, Charles Mwangi from the Kenya Space Agency, a long-time friend and collaborator of TAHMO, participated as a panelist. Our partnership with Mwangi dates back to the RCMRD Space Challenges, where students leverage weather data for competitions. A significant part of the discussion centered on the challenges Africa faces in effectively utilizing technology for earth observation. One of the key barriers highlighted was the continent’s limited capacity to generate and store its own data. For example, downloading satellite imagery can take hours due to unreliable internet connections and frequent power outages. These infrastructural challenges hinder Africa’s ability to fully leverage technology and close existing gaps. “It’s more about where we want to see Africa go,” Mwangi remarked, emphasizing that governments need to actively invest in technology and infrastructure to support faster data access and use.

Engaging Africa’s Youth in Earth Observation

Between sessions, entertainment by RCMRD students offered a powerful reminder of the potential of youth, while also insisting on the responsibility we all share in preserving the earth. One of the songs they presented “isikuti yahuma Ango”, a traditional Luhya song from western Kenya- brought smiles to the faces of the audience, showing a deep appreciation for the students’ diverse talents and pride in the work being done to guide and mentor the next generation as they prepare to shape the future. The anticipation for what lies ahead was evident in the faces of the audience.

One of the most pressing topics raised during the conference was the role of young people in driving earth observation initiatives. Many panelists pointed out that there’s often a disconnect between the problems facing Africa and the solutions being proposed. Programs like mapathons, hackathons, and boot camps were suggested as ways to bridge this gap and engage the youth in meaningful, problem-solving activities.

When it comes to agriculture, an often overlooked sector by young people, the discussion shifted towards making it more appealing. With organizations like GEOGLAM insisting on integrating data with policy, there are growing opportunities for youth to engage in agriculture through technology and innovation. As farmers are not scientists, bridging the gap with tech-savvy youth can lead to a more dynamic agricultural sector.

Youth from Measurement Systems Limited showcasing their solutions at the exhibition

Looking Ahead

As Africa continues to develop its earth observation capabilities, the focus remains on how to better integrate data into actionable insights. From addressing food security to managing natural resources, collaboration across borders, institutions, and generations will be key to ensuring that Africa’s rich biodiversity and ecosystems are preserved for future generations.

As we gear up for COP29, the message from RIC2024 is clear: Earth is our only home. For TAHMO, this is a reminder of our critical role in building climate resilience across Africa. The future holds immense promise, and I couldn’t be more excited for the journey ahead.


TAHMO Attended GSMA MWC Meeting

In October, representatives from TAHMO in Rwanda and Tanzania embarked on a transformative journey to the GSMA MWC Kigali Series. The GSMA, a global organization dedicated to unifying the mobile ecosystem and driving innovation for positive change in both business and society, set the stage for an inspiring gathering.

As a climate and weather observatory institution, TAHMO found itself uniquely positioned to leverage the opportunities presented at this event. The theme of a “new chapter for climate action” resonated deeply with the organization’s mission. However, the real game-changer was TAHMO’s selection by the GSMA Mobile for Development Foundation, Inc. for an Innovation Fund Grant Agreement. This recognition was more than just an accolade; it was a chance to further their noble cause.

The vibrant setting of the KIGALI M Hotel hosted a startup boot camp on the 15th and 16th of October, attended by Lisa from Tanzania. The connections made during this event would prove to be pivotal in the days to come.

On the first day of the meeting, attendees were treated to insights from notable speakers, including the esteemed President of Rwanda, Paul Kagame. His emphasis on “making digital life cheap and inclusive” set the tone for a gathering aimed at breaking barriers and driving positive change.

The second day of the meeting maintained the momentum, focusing on “unleashing tomorrow’s technology today.” Sessions were dedicated to building a connected Africa, with distinguished speakers like Lacine Kone sharing their perspectives and expertise.

The overarching theme of the GSMA MWC Kigali Series was crystal clear: the mobile industry had the potential to be a force for good in the realm of climate action. Climate change is an existential threat that humanity must address, and the mobile industry is poised to play a significant role in this global battle.

The mobile sector has made significant strides by collectively developing an industry-wide climate action roadmap with the ambitious goal of achieving net-zero greenhouse gas emissions by 2050, aligning with the Paris Agreement. The commitment of around 80% of the global mobile industry by revenue to disclose their climate impacts, energy consumption, and GHG emissions through the CDP global disclosure system was a testament to their dedication. Moreover, over 60% of the industry had committed to science-based targets, a pledge to rapidly reduce carbon emissions over the next decade.

The mobile industry’s proactive approach to addressing climate change didn’t go unnoticed. It was recognized as one of the first breakthrough industries, with the GSMA serving as an accelerator for the UN Race to Zero initiative. The Mobile for Development’s ClimateTech program was furthering these efforts, aiming to foster greater integration between digital technology and climate mitigation, adaptation, and resilience strategies, particularly in low and middle-income countries.

TAHMO’s mission aligned seamlessly with these global efforts. The Trans-African Hydro-Meteorological Observatory (TAHMO) was on a mission to develop an extensive network of weather stations across Africa. These stations would provide critical current and historical weather data essential for various applications, including agriculture, climate monitoring, and hydro-meteorology. TAHMO’s presence at the GSMA MWC Kigali Series was a testament to their commitment to harnessing the power of mobile technology for the betterment of Africa and the planet.

In Kigali, a shared vision for climate action, innovation, and a more connected world brought people and organizations together. It was a glimpse into a brighter, more sustainable future where mobile technology played a pivotal role in the fight against climate change. As the event concluded, attendees departed with renewed determination and a sense of purpose, ready to continue their collective journey towards a more sustainable and climate-resilient world.

Author: Cyuzuzo Honore


May blog 2023

Why Your Local Weather Prediction Could Be Wrong .tahmo May 2023 blog

Have you ever checked the weather forecast, only to find out that it was completely wrong? It can be frustrating, but there are many factors that can influence the accuracy of weather predictions. Let’s take a closer look at why weather predictions aren’t always spot on.

Weather predictions are developed by complex mathematical equations that take into account various variables such as temperature, humidity, wind speed and direction, air pressure, and more. However, even with all this data and sophisticated models, there are still many factors that can influence the accuracy of weather predictions.

One of the most significant factors is the availability of accurate data. Weather predictions depend on the collection of precise and timely data from various sources, such as satellites, weather balloons, ground-based weather stations, and radars. If the data is incomplete, outdated, or inaccurate, the predictions are likely to be less reliable.

Another factor that can affect the accuracy of weather predictions is the complexity of the atmosphere itself. The atmosphere is a chaotic and dynamic system, which means that even small changes in one part of the system can have significant impacts on the weather in another part. This makes it challenging to predict the weather, especially over longer time horizons accurately.

Finally, weather predictions are always subject to a degree of uncertainty. Weather models are based on probabilistic forecasts, which means that they provide a range of possible outcomes rather than a definitive answer. It’s important to keep this in mind when interpreting weather predictions and to understand that unexpected changes in the weather can always occur.

Fortunately, organizations such as TAHMO are working to improve weather prediction accuracy. TAHMO is building a network of high-quality weather stations across Africa that provide reliable real-time data. This data can be utilized to improve weather prediction models and help make weather predictions more accurate.

So, the next time you check the weather forecast and it doesn’t come out as predicted, don’t be too hard on the weatherman. After all, weather predictions are simply predictions and not facts. It’s important to understand the limitations of these predictions and to keep in mind the many factors that can influence their accuracy.

Written by Gilbert Mwangi, Technical Director TAHMO


TAHMO country representative for Kenya Victor Omoit joined Faith Wawira – Senior ICT Officer (WRA)   and Joseph Mukola – Principal Meteorology Technician (KMD) on a five-day field work to carry out regular maintenance on 10 Automatic Weather Stations installed in the Nzoia basin.

The team started their work in the Eldoret sub-region then in the Kitale Sub-region and finally complete their activity in Kakamega.

The stations involved were at the following locations: Ndalat, Naiberi, Turbo NYS, Chebororwa ATC, Kapcherop, Mt Elgon Flowers, Koitobos, Ndalu, Malava, Nzoia Sugar Company and finally Butere Girls High School.

Early warning Systems could contribute up to 36:1 in terms of benefit-cost ratios in developing countries. However, they are often non-functional mostly due to a lack of weather and stream-flow data (WMO-No.1153). This is the challenge that TAHMO  is addressing with a dense network of ground observing stations that provide near real-time reliable data to improve Numerical Weather Predictions (NWP) and hydrological models for Africa through data assimilation (satellites and in-situ data). https://new.tahmo.org/climate-data/

Whatever solution is provided for an Early Warning System should be easily scalable, sustainable and impactful. It needs to be a complete end-to-end solution that involves data collection, processing and dissemination of “localized” information to end users and the use of the information in their activities in the form of warnings to build their resilience through disaster preparedness and flood risk reduction. This is the basis for which the Water Resources Authority (WRA) installed an Early Warning System consisting of 10 Automatic Weather Stations and 7 Automatic Water Level Stations in 2018/2019 and TAHMO is very happy to have been part of this project.


On March 15, Kenya was put on partial lockdown after 2 COVID cases were reported in the country.  Alongside the government-imposed dusk-to-dawn curfew, schools were closed and movement restricted. Within a week, the lockdown wave had spread to most East African countries. It created a sense of panic, fear and uncertainty. This hit our team hard because our work involves traveling, meetings and working with schools. I wondered how we would carry on with field activities.

At TAHMO East Africa, we have an elaborate guideline for field work that ensures we provide high-quality data. If a weather station is faulty for instance, our first point of contact is the host who checks if the issue is minor and where possible resolves the issue. But if the issue is more complicated, one of our technicians/meteorologists/engineers visits the site. Additionally, we have put up structures for preventing station failures. One way is by yearly preventive maintenance where we visit all the stations to identify any potential future problems and resolve them beforehand.

When lockdown came along, we were at the peak of our yearly stations maintenance. I also had scheduled travels, clients to meet, projects to initiate and projects to push forward. All this put me in a limbo. Top on my list of attention was how our team would carry along repairs. There are no two ways with weather stations. If it is not working, data not captured will never be recovered. But how then would we carry on with the activities with COVID challenges?

In Kenya, most stations are hosted in schools. When schools shut a big number of teachers relocated. We did not have effective communication with the hosts anymore. Traveling to the sites was a challenge too. You would be comforted with several fears – caught out of time due to delays in screenings mounted in roadblocks, or at worst, being put on government quarantine.

By mid-April, we had put up a structure where more people would help with field activities. In Kenya for instance Victor (TAHMO Engineer) involved former interns and volunteers living in areas where we could not travel to assist with some of the work. In Rwanda, Honore (TAHMO Engineer), trained new technicians via zoom that would take work in areas in regions he was unable to travel.

At the time of this writing (mid-July 2020) countries are easing restrictions. There is less fear – we have probably learned to carry on with our work amidst the challenges. TAHMO East Africa Network improved tremendously in the last two months. Not everything is working right, and we do not expect everything to be smooth soon. There is still a sense of uncertainty about how the future will look after COVID.  But we will keep the hope and develop more ways of keeping our work going.