Rain-fed pulses of methane from East Africa during 2018–2019 contributed to atmospheric growth rate
Bibliographic Data
| ID | 15548182 |
|---|---|
| Authors | Mark F Lunt (0000-0002-0827-2137, University of Edinburgh, corresponding author), Paul I Palmer (0000-0002-1487-0969, National Centre for Earth Observation), Alba Lorente (0000-0002-2287-4687, Space Research Organisation Netherlands), Tobias Borsdorff (0000-0002-4421-0187, Space Research Organisation Netherlands), Jochen Landgraf (0000-0002-6069-0598, Space Research Organisation Netherlands), Robert J Parker (0000-0002-0801-0831, University of Leicester), Hartmut Boesch (0000-0003-3944-9879, University of Leicester) |
| Year | 2021 |
| Volume | 16 |
| Issue | 2 |
| Pages | 024021-024021 |
| Publication date | 2021-01-06 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/abd8fa |
| OpenAlex | W3119293863 |
| Language | EN |
| Citations received | 1 |
| References cited | 47 |
East Africa is a key location for wetland emissions of methane (CH 4 ), driven by variations in rainfall that are in turn influenced by sea-surface temperature gradients over the Indian Ocean. Using satellite observations of CH 4 and an atmospheric chemistry-transport model, we quantified East African CH 4 emissions during 2018 and 2019 when there was 3- σ anomalous rainfall during the long rains (March–May) in 2018 and the short rains (October–December) in 2019. These rainfall anomalies resulted in CH 4 emissions of 6.2 ± 0.3 Tg CH 4 and 8.6 ± 0.3 Tg CH 4 , in each three month period, respectively, and represent a 10% and 37% increase compared to the equivalent season in the opposite year, when rainfall was close to the long-term seasonal mean. We find the additional short rains emissions were equivalent to over a quarter of the growth in global emissions in 2019, highlighting the disproportionate role of East Africa in the global CH 4 budget
Atmospheric methane · Atmospheric sciences · Climatology · Greenhouse gas · Methane · Wetland · Atmospheric and Environmental Gas Dynamics · Atmospheric chemistry and aerosols · Chemistry · Climate variability and models · Environmental Science · Ecology · Geology · Oceanography
| Unique citing works | 1 |
|---|---|
| Citations per year | 0,33 |
| Citation span | 2023 - 2023 (1) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 1 |