Global Oceanic Precipitation from the MSU during 1979—91 and Comparisons to Other Climatologies

Spencer, Roy W.

doi:10.1175/1520-0442(1993)006<1301:gopftm>2.0.co;2

Cited by 307 publications

(192 citation statements)

References 33 publications

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“…The teleconnection is such that Indian monsoon rainfall tends to be (Fig. 2a), the pattern correlation with MSU/raingauge data (Schemm et al 1992, Spencer 1993 in the vicinity of India is only slightly higher (0.60 vs. 0.55) relative to the original models that did not to simulate the observed teleconnection (Fig. 2b).…”

Section: Mean State Versus Interannual Variabilitymentioning

confidence: 76%

Are revised models better models? A skill score assessment of regional interannual variability

Sperber

Groups

1999

Geophysical Research Letters

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Section: Mean State Versus Interannual Variabilitymentioning

confidence: 76%

Are revised models better models? A skill score assessment of regional interannual variability

Sperber

Groups

1999

Geophysical Research Letters

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“…However, it uses a different data blending methodology than GPCP and incorporates OLR measurements and a modified version of precipitation estimates from an MSU channel 1 algorithm [Spencer, 1993]. Table i …”

Section: Resultsmentioning

confidence: 99%

A new satellite deep convective ice index for tropical climate monitoring: Possible implications for existing oceanic precipitation data sets

Robertson

Spencer

Fitzjarrald

2001

Geophysical Research Letters

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“…To this end, we acquired and analyzed the following gridded monthly observed precipitation data sets: National Oceanic and Atmospheric Administration Land Precipitation (NOAA PREC/L; Chen et al, 2002); National Aeronautics and Space Administration Global Precipitation Climatology Project (NASA GPCP; Adler et al, 2003); NASA Tropical Rainfall Measuring Mission (NASA TRMM; Huffman et al, 2007); NOAA Climate Prediction Center Merged Analysis of Precipitation (CPC CMAP; Xie and Arkin, 1997); Microwave Sounding Unit (MSU; Spencer, 1993); University of East Anglia-Climate Research Unit (UEA-CRU) Global (Hulme, 1992) and v.TS2.1 (Mitchell and Jones, 2005); University of Delaware (UDEL; Willmott and Matsuura, 1995); Universidad Nacional Autónoma de México (UNAM) v.0605 and v.0705; German Climate Research Program (DEKLIM; Beck et al, 2005); NOAA Climate Anomaly Monitoring System (CAMS; Janowiak and Xie, 1999); and NOAA CPC Morphing Technique (CMORPH; Joyce et al, 2004). For brevity, we do not show the results from all data sets in this paper.…”

Section: Methodsmentioning

confidence: 99%

A simple mechanism for the climatological midsummer drought along the Pacific coast of Central America

Karnauskas¹,

Seager²,

Giannini³

et al. 2013

Atmósfera

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RESUMENSe investigan la distribución mundial, la evolución estacional y los mecanismos subyacentes de la sequía de medio verano (MSD, por sus siglas en inglés) mediante un conjunto de observaciones realizadas en estaciones climatológicas y datos de reanálisis con resolución espacial y temporal relativamente alta, con especial énfasis en la costa del Pacífico centroamericano y el sur de México. Aunque la MSD de Centroamérica destaca por su coherencia y escala espacial, no es exclusiva de la región del Gran Caribe ni necesariamente la más intensa del planeta, como lo demuestra un análisis objetivo de varios conjuntos de datos globales de precipitación. Se propone un mecanismo para la MSD que relaciona la dependencia latitudinal de los dos máximos climatológicos de precipitación con el cruce semestral de la declinación solar, lo cual determina la presencia de dos picos de inestabilidad convectiva y por lo tanto de lluvias. Además de este mecanismo local subyacente, una serie de procesos remotos tiende a alcanzar su punto máximo en el vértice de la MSD. Dichos procesos incluyen el monzón de Norteamérica, la corriente en chorro de bajo nivel del Caribe y el anticiclón subtropical del Atlántico Norte, que también puede suprimir las lluvias a lo largo de la costa del Pacífico centroamericano y generar variabilidad interanual en la fuerza o el momento de la MSD. Sin embargo, los hallazgos de este estudio contradicen el paradigma existente de que la MSD debe su existencia a un mecanismo supresor de la precipitación. Por el contrario, a partir del análisis de registros temporales de mayor resolución de precipitaciones y variaciones que toman en cuenta la latitud, se sugiere que la MSD es básicamente el resultado de un mecanismo de reforzamiento de la precipitación que ocurre dos veces. ABSTRACTThe global distribution, seasonal evolution, and underlying mechanisms for the climatological midsummer drought (MSD) are investigated using a suite of relatively high spatial and temporal resolution station ob- servations and reanalysis data with particular focus on the Pacific coast of Central America and southern Mexico. Although the MSD of Central America stands out in terms of spatial scale and coherence, it is neither unique to the Greater Caribbean Region (GCR) nor necessarily the strongest MSD on Earth based on an objective analysis of several global precipitation data sets. A mechanism for the MSD is proposed that relates the latitudinal dependence of the two climatological precipitation maxima to the biannual crossing of the solar declination (SD), driving two peaks in convective instability and hence rainfall. In addition to this underlying local mechanism, a number of remote processes tend to peak during the apex of the MSD, including the North American monsoon, the Caribbean low-level jet, and the North Atlantic subtropical high, which may also act to suppress rainfall along the Pacific coast of Central America and generate interannual variability in the strength or timing of the MSD. However, our findings challenge the...

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Global Oceanic Precipitation from the MSU during 1979—91 and Comparisons to Other Climatologies

Cited by 307 publications

References 33 publications

Are revised models better models? A skill score assessment of regional interannual variability

Are revised models better models? A skill score assessment of regional interannual variability

A new satellite deep convective ice index for tropical climate monitoring: Possible implications for existing oceanic precipitation data sets

A simple mechanism for the climatological midsummer drought along the Pacific coast of Central America

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