4,990 research outputs found
Optimizing ?0 information from the Jason-2 altimeter
No full textA radar altimeter's normalized backscatter, ?0, is used in many oceanographic applications, to infer values of wind speed, wind stress, rain rate and the presence of biogenic slicks. The waveform retracker used to estimate the key geophysical variables for the altimeters on the Jason-1 and Jason-2 satellites shows increased small-scale variability since the problem is ill-conditioned. A simple empirical adjustment to ?0 improves the separability between various parameters and also improves the along-track profiles of ?0. This leads to i) more realistic wind fields, ii) better discrimination of rain events, and iii) improved comparison between the Jason-1 and Jason-2 altimeters during their tandem mission
Perdita Smith
No full textSubgenus Perdita Smith s. s. Taxonomy: Timberlake (1958, 1960, 1968)Published as part of Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, pp. 1-160 in Zootaxa 4352 (1) on page 34, DOI: 10.11646/zootaxa.4352.1.1, http://zenodo.org/record/106385
Colletes mandibularis Smith 1853
No full textColletes mandibularis Smith 1853 (americanus group) County records: Leelanau.Published as part of Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, pp. 1-160 in Zootaxa 4352 (1) on page 69, DOI: 10.11646/zootaxa.4352.1.1, http://zenodo.org/record/106385
Colletes thoracicus Smith 1853
No full textColletes thoracicus Smith 1853 (inaequalis group) County records: Allegan, Berrien, Ingham, Muskegon, Ottawa, Van Buren. Notes. Nests described by Batra (1980), Cane (1991), and Parker & Böving (1924) from Maryland, New York, and Washington, D.C., respectively.Published as part of Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, pp. 1-160 in Zootaxa 4352 (1) on page 70, DOI: 10.11646/zootaxa.4352.1.1, http://zenodo.org/record/106385
Andrena (Cnemidandrena) nubecula Smith 1853
No full textAndrena (Cnemidandrena) nubecula Smith 1853 (nubecula group) County records: Calhoun, Cass, Clinton, Dickinson, Ingham, Jackson, Kalamazoo, Lapeer, Lenawee, Livingston, Marquette, Midland, Newaygo, Van Buren, Washtenaw. Notes. Specialist on Solidago (Asteraceae).Published as part of Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, pp. 1-160 in Zootaxa 4352 (1) on page 18, DOI: 10.11646/zootaxa.4352.1.1, http://zenodo.org/record/106385
Andrena (Callandrena) simplex Smith 1853
No full textAndrena (Callandrena s. l.) simplex Smith 1853 (simplex group) County records: Allegan, Bay, Huron, Ingham, Isabella, Mecosta, Midland, Muskegon, Ogemaw, Otsego, Roscommon, Shiawassee, Washtenaw. Notes. Specialist on Solidago and Symphyotrichum (Asteraceae) (LaBerge 1967).Published as part of Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, pp. 1-160 in Zootaxa 4352 (1) on page 17, DOI: 10.11646/zootaxa.4352.1.1, http://zenodo.org/record/106385
Perdita (Perdita) halictoides Smith 1853
No full textPerdita (Perdita) halictoides Smith 1853 (halictoides group) County records: Barry, Berrien, Clinton, Ingham, Kalamazoo, Midland, Oscoda, Saginaw, St. Joseph, Van Buren, Washtenaw. Notes. Specialist on Physalis (Solanaceae). Nest from Florida described by Eickwort (1977).Published as part of Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, pp. 1-160 in Zootaxa 4352 (1) on page 34, DOI: 10.11646/zootaxa.4352.1.1, http://zenodo.org/record/106385
Melissodes (Eumelissodes) denticulatus Smith 1854
No full textMelissodes (Eumelissodes) denticulatus Smith 1854 County records: Allegan, Ingham, Kalamazoo, Kent, Keweenaw, Newaygo, Saginaw, Van Buren, Washtenaw, Wayne. Notes. Specialist on Vernonia (Asteraceae).Published as part of Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, pp. 1-160 in Zootaxa 4352 (1) on page 46, DOI: 10.11646/zootaxa.4352.1.1, http://zenodo.org/record/106385
Nomada imbricata Smith 1854
No full textNomada imbricata Smith 1854 (ruficornis group) County records: Berrien, Calhoun, Clinton, Ingham, Iron, Kent, Livingston, Midland, Newaygo, Oceana, Van Buren, Washtenaw. Notes. Cleptoparasite of Andrena regularis (Miliczky & Osgood 1995). Nomada imbricata has been observed at nest sites of A. dunningi in Winnipeg, Manitoba (JG, pers. obs.) and at Ithaca, New York (JSA, pers. obs.).Published as part of Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, pp. 1-160 in Zootaxa 4352 (1) on page 59, DOI: 10.11646/zootaxa.4352.1.1, http://zenodo.org/record/106385
Andrena (Melandrena) commoda Smith 1879
No full textAndrena (Melandrena) commoda Smith 1879 County records: Allegan, Antrim, Bay, Berrien, Branch, Calhoun, Cass, Cheboygan, Crawford, Gladwin, Gratiot, Ingham, Isabella, Kalamazoo, Kent, Keweenaw, Lenawee, Livingston, Macomb, Manistee, Mecosta, Midland, Monroe, Montcalm, Oakland, Osceola, Ottawa, Saginaw, Shiawassee, Tuscola, Van Buren, Washtenaw, Wexford.Published as part of Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, pp. 1-160 in Zootaxa 4352 (1) on page 23, DOI: 10.11646/zootaxa.4352.1.1, http://zenodo.org/record/106385
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