---
access_dt: ~
aliases:
  - context: dataset
    lexicon: ornl
    term: oai:mercury-ops2.ornl.gov:ornldaac_944
    url: http://mercury.ornl.gov/oai/provider?verb=GetRecord&metadataPrefix=oai_dif&identifier=oai:mercury-ops2.ornl.gov:ornldaac_944
  - context: dataset
    lexicon: ornl
    term: oai:mercury.ornl.gov:ornldaac_944
    url: http://mercury.ornl.gov/oai/provider?verb=GetRecord&metadataPrefix=oai_dif&identifier=oai:mercury.ornl.gov:ornldaac_944
attributes: ~
cite_metadata: ~
cited_by: []
contributors:
  - display_name: 'Data Archive : Oak Ridge National Laboratory Distributed Active Archive Center '
    href: http://52.38.26.42:8080/contributor/4097.yaml
    id: 4097
    organization:
      country_code: US
      display_name: Oak Ridge National Laboratory Distributed Active Archive Center
      identifier: oak-ridge-national-laboratory-distributed-active-archive-center
      name: Oak Ridge National Laboratory Distributed Active Archive Center
      organization_type_identifier: federal
      type: organization
      url: http://daac.ornl.gov
    organization_uri: /organization/oak-ridge-national-laboratory-distributed-active-archive-center
    person: {}
    person_id: ~
    person_uri: ~
    role_type_identifier: data_archive
    uri: /contributor/4097
data_qualifier: ~
description: "ABSTRACT: We analyzed rainfall obtained in a network of 38 rain gauges located near the confluence of the Tapajos and Amazon rivers in the eastern Amazon Basin. We found that tipping bucket rain gauges work adequately in the Amazon rainfall regime, but careful field calibration and comparison with collocated conventional rain gauges was essential to incorporate daily totals from operational array into regional maps. Near-river stations miss the afternoon convective rain as expected as the river breeze promotes subsidence over the river, but paradoxically, this deficiency is more than compensated for by additional nocturnal rainfall at these locations. The 0.25-degree CMORPH passive infrared inferred rainfall data do an adequate job of describing medium scale variability in this region, but some localized breeze effects are not resolved. For inland areas away from the breezes, the nocturnal period precipitation contributes less than half of total precipitation. The large-scale rainfall increase just to the west of Santarem manifests itself locally as a 'tongue' of enhanced rain from along the wide area of open water at the Tapajos-Amazon confluence The breeze circulations associated with the Amazon River (which lies parallel to the mean flow) affects rainfall more than does the Tapajos breeze (normal to the predominant wind). The Tapajos breeze influence extends only a few kilometers inland east of the riverbank. Rainfall increases to the north of the Amazon, possibly the result of orographic effects. Dry season rainfall increases by up to 30% going away from the Amazon River, as would be expected given breeze subsidence over the river."
description_attribution: http://daac.ornl.gov//LBA/guides/CD03_Mesoscale_Meteorology.html
display_name: 'LBA-ECO CD-03 Mesoscale Meteorological Data, Santarem Region, Para, Brazil: 1998-2006'
doi: 10.3334/ORNLDAAC/944
end_time: 2006-12-31T00:00:00
files: []
href: http://52.38.26.42:8080/dataset/nasa-ornldaac-944.yaml
identifier: nasa-ornldaac-944
instrument_measurements: []
lat_max: -3.3502
lat_min: -3.3502
lon_max: -54.924
lon_min: -54.924
name: 'LBA-ECO CD-03 Mesoscale Meteorological Data, Santarem Region, Para, Brazil: 1998-2006'
native_id: MD_CD03_MESOSCALE
parents: []
processing_level: ~
publication_year: ~
references: []
release_dt: 2009-01-01T00:00:00
scale: ~
scope: ~
spatial_extent: ~
spatial_ref_sys: ~
spatial_res: ~
start_time: 1998-08-20T00:00:00
temporal_extent: ~
temporal_resolution: ~
type: dataset
uri: /dataset/nasa-ornldaac-944
url: http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=944
variables: ~
version: ~
vertical_extent: ~