| AEM |
Aeronautical Meteorology Division (MAP/WDS) |
| AER |
Atmospheric Environment Research Division (ARE/RES) |
| AGM |
Agricultural Meteorology Division (CLPA/CLW) |
| ARE |
Atmospheric Research and Environment Branch (RES) |
| ASG |
Assistant Secretary-General |
| BO |
Budget Office (REM) |
| BSH |
Basic Systems in Hydrology Division (HWR/CLW) |
| CBHWR |
Capacity Building in Hydrology and Water Resources Management Office (HWR) |
| CCA |
Climate Coordination Division (CLPA/CLW) |
| CCFM |
Conferences, Contracts and Facilities Management Branch (PSS) |
| CER |
Cabinet and External Relations Department |
| CLPA |
Climate Prediction and Adaptation Branch (CLW) |
| CLW |
Climate and Water Department |
| CNF |
Conferences Unit (CCFM/PSS) |
| COS |
Common Services Division (CCFM/PSS) |
| CPA |
Communications and Public Affairs Office (CER) |
| DMA |
WIS Data Management Applications Division (WIS) |
| DPMU |
Documents and Publications Management Unit (LSP/PSS) |
| DRA |
Development and Regional Activities Department |
| DRMM |
WIS Data Representation, Metadata and Monitoring Division (WIS/OBS) |
| DRR |
Disaster Risk Reduction Division (DSD/WDS) |
| DSD |
Disaster Risk Reduction and Service Delivery Branch (WDS) |
| DSG |
Deputy Secretary-General |
| ECM |
Entitlements and Contracts Management Unit (HRD/REM) |
| EPAS |
Performance Audit Service (IOO) |
| ESA |
WMO Office for Eastern and Southern Africa (RAF/DRA) |
| ETR |
Education and Training Office (DRA) |
| EULO |
Joint WMO/EUMETNET Office in Brussels (CER) |
| EUR |
Regional Office for Europe (DRA) |
| EXR |
External Relations Office (CER) |
| FEL |
Education and Fellowships Division (ETR/DRA) |
| FIN |
Finance Division (REM) |
| GCOS |
Global Climate Observing System (WIGOS/OBS) |
| HFWR |
Hydrological Forecasting and Water Resources Division (HWR/CLW) |
| HRD |
Human Resources Division (REM) |
| HWR |
Hydrology and Water Resources Branch (CLW) |
| IAS |
Internal Audit Service (IOO) |
| IMU |
Information Management Unit (ITD/REM) |
| IOO |
Internal Oversight Office |
| IPCC |
Intergovernmental Panel on Climate Change Secretariat |
| ITD |
Information Technology Division REM) |
| ITS |
Information and Telecommunication System Division (WIS/OBS) |
| JPO/WCRP |
Joint Planning Staff/World Climate Research Programme (RES) |
| LC |
Legal Counsel |
| LDCR |
Office for the Least Developed Countries Programme and Regional Coordination (DRA) |
| LIB |
Technical Library (IMU/ITD/REM) |
| LSP |
Linguistic Services and Publishing Branch (PSS) |
| MAP |
Meteorological Applications Branch (WDS) |
| NCAC |
WMO Office for North America, Central America and the Caribbean (RAM/DRA) |
| NCWA |
WMO Office for North, Central and West Africa (RAF/DRA) |
| NYLO |
New York Liaison Office (CER) |
| OBS |
Observing and Information Systems Department |
| OSD |
Observing Systems Division (WIGOS/OBS) |
| PO WIGOS |
WMO Integrated Observing Strategy planning office (WIGOS/OBS) |
| PSS |
Programme Support Services Department |
| PTS |
Procurement and Travel Services Division (CCFM/PSS) |
| PWMU |
Public Information Materials and Web Management Unit (CER) |
| PWS |
Public Weather Services Division (DSD/WDS) |
| RAF |
Regional Office for Africa (DRA) |
| RAM |
Regional Office for the Americas (DRA) |
| RAP |
Regional Office for Asia & South-West Pacific (DRA) |
| REM |
Resource Management Department |
| RES |
Research Department |
| RMU |
Registry and Mail Unit (IMU/ITD/REM) |
| RMO |
Resource Mobilization Office (DRA) |
| SAM |
WMO Office for South America(RAM/DRA) |
| SAT |
Space Programme Office (WIGOS/OBS) |
| SDU |
Satellite Data Utilization Division (SAT) |
| SG |
Secretary-General |
| SBOS |
Space-based Observing Systems Division (SAT/WIGOS/OBS) |
| SPO |
Strategic Planning Office |
| SPO |
Special Project Office |
| SSD |
Staffing Development and Staff Development (HRD/REM) |
| SWO |
Social Welfare Officer |
| SWOP |
WMO Office for the South-West Pacific (RAP/DRA) |
| TCP |
Tropical Cyclone Programme Division (DSD/WDS) |
| TRA |
Training Activities Division (ETR/DRA) |
| TRV |
Travel Unit (PTS/CCFM) |
| WA |
WMO Office for West Africa (RAF/DRA) |
| WCAS |
World Climate Applications and Services Division (CLPA/CLW) |
| WDS |
Weather and Disaster Risk Reduction Services Department |
| WIGOS |
WMO Integrated Global Observing System Branch (OBS) |
| WIS |
WMO Information SystemBranch (OBS) |
| WWR |
World Weather Research Division(ARE/RES) |