Imaging · collection
Climate Moisture Indices for the World Water Development Report II
Listed in NASA Earthdata CMR
Global field of long-term average annual climate moisture index (CMI, Willmott and Feddema, 1992) computed using the ratio of annual precipitation (P) to annual potential evapotranspiration, (PET), specifically CMI = (P/PET) when P < PET and CMI = 1 - (PET/P) when P >= PET.
Description
The indicator ranges from to +1, with wet climates showing positive CMI, and dry climates negative CMI. PET was estimated using the physically-based function of Shuttleworth and Wallace (1985), which is a modification of the standard Penman-Monteith PET equation.
Long-term average precipitation was computed from Mitchell et al. (2003). Coefficient of variability (CV) is computed as the annual standard deviation divided by long-term annual mean.
Links
Get the data
- Access to climate moisture data wwdrii.sr.unh.edu/download.html ↗
download · from NASA CMR
Documentation and papers
- Climate moisture index documentation wwdrii.sr.unh.edu/sourcematerial/CMI_metadata.html ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214621723-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214621723-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Evapotranspiration · Not provided · Precipitation Amount
- Inferred from text
- Climate change science 71%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214621723-SCIOPS | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3702 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-processes/evapotranspiration | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/precipitation/precipitation-amount | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |